text: /*!
   * The buffer module from node.js, for the browser.
   *
   * @author   Feross Aboukhadijeh <https://feross.org>
   * @license  MIT
   */
  /* eslint-disable no-proto */
  
  "use strict";
  
  import * as base64 from "./base64.js";
  import * as ieee754 from "./ieee754.js";
  
  const customInspectSymbol =
    typeof Symbol === "function" && typeof Symbol["for"] === "function" // eslint-disable-line dot-notation
      ? Symbol["for"]("nodejs.util.inspect.custom") // eslint-disable-line dot-notation
      : null;
  
  export const INSPECT_MAX_BYTES = 50;
  
  const K_MAX_LENGTH = 0x7fffffff;
  export const kMaxLength = K_MAX_LENGTH;
  
  /**
   * If `Buffer.TYPED_ARRAY_SUPPORT`:
   *   === true    Use Uint8Array implementation (fastest)
   *   === false   Print warning and recommend using `buffer` v4.x which has an Object
   *               implementation (most compatible, even IE6)
   *
   * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
   * Opera 11.6+, iOS 4.2+.
   *
   * We report that the browser does not support typed arrays if the are not subclassable
   * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
   * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
   * for __proto__ and has a buggy typed array implementation.
   */
  Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport();
  
  if (
    !Buffer.TYPED_ARRAY_SUPPORT &&
    typeof console !== "undefined" &&
    typeof console.error === "function"
  ) {
    console.error(
      "This browser lacks typed array (Uint8Array) support which is required by " +
        "`buffer` v5.x. Use `buffer` v4.x if you require old browser support."
    );
  }
  
  function typedArraySupport() {
    // Can typed array instances can be augmented?
    try {
      const arr = new Uint8Array(1);
      const proto = {
        foo: function () {
          return 42;
        },
      };
      Object.setPrototypeOf(proto, Uint8Array.prototype);
      Object.setPrototypeOf(arr, proto);
      return arr.foo() === 42;
    } catch (e) {
      return false;
    }
  }
  
  Object.defineProperty(Buffer.prototype, "parent", {
    enumerable: true,
    get: function () {
      if (!Buffer.isBuffer(this)) return undefined;
      return this.buffer;
    },
  });
  
  Object.defineProperty(Buffer.prototype, "offset", {
    enumerable: true,
    get: function () {
      if (!Buffer.isBuffer(this)) return undefined;
      return this.byteOffset;
    },
  });
  
  function createBuffer(length) {
    if (length > K_MAX_LENGTH) {
      throw new RangeError(
        'The value "' + length + '" is invalid for option "size"'
      );
    }
    // Return an augmented `Uint8Array` instance
    const buf = new Uint8Array(length);
    Object.setPrototypeOf(buf, Buffer.prototype);
    return buf;
  }
  
  /**
   * The Buffer constructor returns instances of `Uint8Array` that have their
   * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
   * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
   * and the `Uint8Array` methods. Square bracket notation works as expected -- it
   * returns a single octet.
   *
   * The `Uint8Array` prototype remains unmodified.
   */
  
  export function Buffer(arg, encodingOrOffset, length) {
    // Common case.
    if (typeof arg === "number") {
      if (typeof encodingOrOffset === "string") {
        throw new TypeError(
          'The "string" argument must be of type string. Received type number'
        );
      }
      return allocUnsafe(arg);
    }
    return from(arg, encodingOrOffset, length);
  }
  
  Buffer.poolSize = 8192; // not used by this implementation
  
  function from(value, encodingOrOffset, length) {
    if (typeof value === "string") {
      return fromString(value, encodingOrOffset);
    }
  
    if (ArrayBuffer.isView(value)) {
      return fromArrayView(value);
    }
  
    if (value == null) {
      throw new TypeError(
        "The first argument must be one of type string, Buffer, ArrayBuffer, Array, " +
          "or Array-like Object. Received type " +
          typeof value
      );
    }
  
    if (
      isInstance(value, ArrayBuffer) ||
      (value && isInstance(value.buffer, ArrayBuffer))
    ) {
      return fromArrayBuffer(value, encodingOrOffset, length);
    }
  
    if (
      typeof SharedArrayBuffer !== "undefined" &&
      (isInstance(value, SharedArrayBuffer) ||
        (value && isInstance(value.buffer, SharedArrayBuffer)))
    ) {
      return fromArrayBuffer(value, encodingOrOffset, length);
    }
  
    if (typeof value === "number") {
      throw new TypeError(
        'The "value" argument must not be of type number. Received type number'
      );
    }
  
    const valueOf = value.valueOf && value.valueOf();
    if (valueOf != null && valueOf !== value) {
      return Buffer.from(valueOf, encodingOrOffset, length);
    }
  
    const b = fromObject(value);
    if (b) return b;
  
    if (
      typeof Symbol !== "undefined" &&
      Symbol.toPrimitive != null &&
      typeof value[Symbol.toPrimitive] === "function"
    ) {
      return Buffer.from(
        value[Symbol.toPrimitive]("string"),
        encodingOrOffset,
        length
      );
    }
  
    throw new TypeError(
      "The first argument must be one of type string, Buffer, ArrayBuffer, Array, " +
        "or Array-like Object. Received type " +
        typeof value
    );
  }
  
  /**
   * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
   * if value is a number.
   * Buffer.from(str[, encoding])
   * Buffer.from(array)
   * Buffer.from(buffer)
   * Buffer.from(arrayBuffer[, byteOffset[, length]])
   **/
  Buffer.from = function (value, encodingOrOffset, length) {
    return from(value, encodingOrOffset, length);
  };
  
  // Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
  // https://github.com/feross/buffer/pull/148
  Object.setPrototypeOf(Buffer.prototype, Uint8Array.prototype);
  Object.setPrototypeOf(Buffer, Uint8Array);
  
  function assertSize(size) {
    if (typeof size !== "number") {
      throw new TypeError('"size" argument must be of type number');
    } else if (size < 0) {
      throw new RangeError(
        'The value "' + size + '" is invalid for option "size"'
      );
    }
  }
  
  function alloc(size, fill, encoding) {
    assertSize(size);
    if (size <= 0) {
      return createBuffer(size);
    }
    if (fill !== undefined) {
      // Only pay attention to encoding if it's a string. This
      // prevents accidentally sending in a number that would
      // be interpreted as a start offset.
      return typeof encoding === "string"
        ? createBuffer(size).fill(fill, encoding)
        : createBuffer(size).fill(fill);
    }
    return createBuffer(size);
  }
  
  /**
   * Creates a new filled Buffer instance.
   * alloc(size[, fill[, encoding]])
   **/
  Buffer.alloc = function (size, fill, encoding) {
    return alloc(size, fill, encoding);
  };
  
  function allocUnsafe(size) {
    assertSize(size);
    return createBuffer(size < 0 ? 0 : checked(size) | 0);
  }
  
  /**
   * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
   * */
  Buffer.allocUnsafe = function (size) {
    return allocUnsafe(size);
  };
  /**
   * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
   */
  Buffer.allocUnsafeSlow = function (size) {
    return allocUnsafe(size);
  };
  
  function fromString(string, encoding) {
    if (typeof encoding !== "string" || encoding === "") {
      encoding = "utf8";
    }
  
    if (!Buffer.isEncoding(encoding)) {
      throw new TypeError("Unknown encoding: " + encoding);
    }
  
    const length = byteLength(string, encoding) | 0;
    let buf = createBuffer(length);
  
    const actual = buf.write(string, encoding);
  
    if (actual !== length) {
      // Writing a hex string, for example, that contains invalid characters will
      // cause everything after the first invalid character to be ignored. (e.g.
      // 'abxxcd' will be treated as 'ab')
      buf = buf.slice(0, actual);
    }
  
    return buf;
  }
  
  function fromArrayLike(array) {
    const length = array.length < 0 ? 0 : checked(array.length) | 0;
    const buf = createBuffer(length);
    for (let i = 0; i < length; i += 1) {
      buf[i] = array[i] & 255;
    }
    return buf;
  }
  
  function fromArrayView(arrayView) {
    if (isInstance(arrayView, Uint8Array)) {
      const copy = new Uint8Array(arrayView);
      return fromArrayBuffer(copy.buffer, copy.byteOffset, copy.byteLength);
    }
    return fromArrayLike(arrayView);
  }
  
  function fromArrayBuffer(array, byteOffset, length) {
    if (byteOffset < 0 || array.byteLength < byteOffset) {
      throw new RangeError('"offset" is outside of buffer bounds');
    }
  
    if (array.byteLength < byteOffset + (length || 0)) {
      throw new RangeError('"length" is outside of buffer bounds');
    }
  
    let buf;
    if (byteOffset === undefined && length === undefined) {
      buf = new Uint8Array(array);
    } else if (length === undefined) {
      buf = new Uint8Array(array, byteOffset);
    } else {
      buf = new Uint8Array(array, byteOffset, length);
    }
  
    // Return an augmented `Uint8Array` instance
    Object.setPrototypeOf(buf, Buffer.prototype);
  
    return buf;
  }
  
  function fromObject(obj) {
    if (Buffer.isBuffer(obj)) {
      const len = checked(obj.length) | 0;
      const buf = createBuffer(len);
  
      if (buf.length === 0) {
        return buf;
      }
  
      obj.copy(buf, 0, 0, len);
      return buf;
    }
  
    if (obj.length !== undefined) {
      if (typeof obj.length !== "number" || numberIsNaN(obj.length)) {
        return createBuffer(0);
      }
      return fromArrayLike(obj);
    }
  
    if (obj.type === "Buffer" && Array.isArray(obj.data)) {
      return fromArrayLike(obj.data);
    }
  }
  
  function checked(length) {
    // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
    // length is NaN (which is otherwise coerced to zero.)
    if (length >= K_MAX_LENGTH) {
      throw new RangeError(
        "Attempt to allocate Buffer larger than maximum " +
          "size: 0x" +
          K_MAX_LENGTH.toString(16) +
          " bytes"
      );
    }
    return length | 0;
  }
  
  export function SlowBuffer(length) {
    if (+length != length) {
      // eslint-disable-line eqeqeq
      length = 0;
    }
    return Buffer.alloc(+length);
  }
  
  Buffer.isBuffer = function isBuffer(b) {
    return b != null && b._isBuffer === true && b !== Buffer.prototype; // so Buffer.isBuffer(Buffer.prototype) will be false
  };
  
  Buffer.compare = function compare(a, b) {
    if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength);
    if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength);
    if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
      throw new TypeError(
        'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
      );
    }
  
    if (a === b) return 0;
  
    let x = a.length;
    let y = b.length;
  
    for (let i = 0, len = Math.min(x, y); i < len; ++i) {
      if (a[i] !== b[i]) {
        x = a[i];
        y = b[i];
        break;
      }
    }
  
    if (x < y) return -1;
    if (y < x) return 1;
    return 0;
  };
  
  Buffer.isEncoding = function isEncoding(encoding) {
    switch (String(encoding).toLowerCase()) {
      case "hex":
      case "utf8":
      case "utf-8":
      case "ascii":
      case "latin1":
      case "binary":
      case "base64":
      case "ucs2":
      case "ucs-2":
      case "utf16le":
      case "utf-16le":
        return true;
      default:
        return false;
    }
  };
  
  Buffer.concat = function concat(list, length) {
    if (!Array.isArray(list)) {
      throw new TypeError('"list" argument must be an Array of Buffers');
    }
  
    if (list.length === 0) {
      return Buffer.alloc(0);
    }
  
    let i;
    if (length === undefined) {
      length = 0;
      for (i = 0; i < list.length; ++i) {
        length += list[i].length;
      }
    }
  
    const buffer = Buffer.allocUnsafe(length);
    let pos = 0;
    for (i = 0; i < list.length; ++i) {
      let buf = list[i];
      if (isInstance(buf, Uint8Array)) {
        if (pos + buf.length > buffer.length) {
          if (!Buffer.isBuffer(buf)) {
            buf = Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength);
          }
          buf.copy(buffer, pos);
        } else {
          Uint8Array.prototype.set.call(buffer, buf, pos);
        }
      } else if (!Buffer.isBuffer(buf)) {
        throw new TypeError('"list" argument must be an Array of Buffers');
      } else {
        buf.copy(buffer, pos);
      }
      pos += buf.length;
    }
    return buffer;
  };
  
  function byteLength(string, encoding) {
    if (Buffer.isBuffer(string)) {
      return string.length;
    }
    if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
      return string.byteLength;
    }
    if (typeof string !== "string") {
      throw new TypeError(
        'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
          "Received type " +
          typeof string
      );
    }
  
    const len = string.length;
    const mustMatch = arguments.length > 2 && arguments[2] === true;
    if (!mustMatch && len === 0) return 0;
  
    // Use a for loop to avoid recursion
    let loweredCase = false;
    for (;;) {
      switch (encoding) {
        case "ascii":
        case "latin1":
        case "binary":
          return len;
        case "utf8":
        case "utf-8":
          return utf8ToBytes(string).length;
        case "ucs2":
        case "ucs-2":
        case "utf16le":
        case "utf-16le":
          return len * 2;
        case "hex":
          return len >>> 1;
        case "base64":
          return base64ToBytes(string).length;
        default:
          if (loweredCase) {
            return mustMatch ? -1 : utf8ToBytes(string).length; // assume utf8
          }
          encoding = ("" + encoding).toLowerCase();
          loweredCase = true;
      }
    }
  }
  Buffer.byteLength = byteLength;
  
  function slowToString(encoding, start, end) {
    let loweredCase = false;
  
    // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
    // property of a typed array.
  
    // This behaves neither like String nor Uint8Array in that we set start/end
    // to their upper/lower bounds if the value passed is out of range.
    // undefined is handled specially as per ECMA-262 6th Edition,
    // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
    if (start === undefined || start < 0) {
      start = 0;
    }
    // Return early if start > this.length. Done here to prevent potential uint32
    // coercion fail below.
    if (start > this.length) {
      return "";
    }
  
    if (end === undefined || end > this.length) {
      end = this.length;
    }
  
    if (end <= 0) {
      return "";
    }
  
    // Force coercion to uint32. This will also coerce falsey/NaN values to 0.
    end >>>= 0;
    start >>>= 0;
  
    if (end <= start) {
      return "";
    }
  
    if (!encoding) encoding = "utf8";
  
    while (true) {
      switch (encoding) {
        case "hex":
          return hexSlice(this, start, end);
  
        case "utf8":
        case "utf-8":
          return utf8Slice(this, start, end);
  
        case "ascii":
          return asciiSlice(this, start, end);
  
        case "latin1":
        case "binary":
          return latin1Slice(this, start, end);
  
        case "base64":
          return base64Slice(this, start, end);
  
        case "ucs2":
        case "ucs-2":
        case "utf16le":
        case "utf-16le":
          return utf16leSlice(this, start, end);
  
        default:
          if (loweredCase) throw new TypeError("Unknown encoding: " + encoding);
          encoding = (encoding + "").toLowerCase();
          loweredCase = true;
      }
    }
  }
  
  // This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
  // to detect a Buffer instance. It's not possible to use `instanceof Buffer`
  // reliably in a browserify context because there could be multiple different
  // copies of the 'buffer' package in use. This method works even for Buffer
  // instances that were created from another copy of the `buffer` package.
  // See: https://github.com/feross/buffer/issues/154
  Buffer.prototype._isBuffer = true;
  
  function swap(b, n, m) {
    const i = b[n];
    b[n] = b[m];
    b[m] = i;
  }
  
  Buffer.prototype.swap16 = function swap16() {
    const len = this.length;
    if (len % 2 !== 0) {
      throw new RangeError("Buffer size must be a multiple of 16-bits");
    }
    for (let i = 0; i < len; i += 2) {
      swap(this, i, i + 1);
    }
    return this;
  };
  
  Buffer.prototype.swap32 = function swap32() {
    const len = this.length;
    if (len % 4 !== 0) {
      throw new RangeError("Buffer size must be a multiple of 32-bits");
    }
    for (let i = 0; i < len; i += 4) {
      swap(this, i, i + 3);
      swap(this, i + 1, i + 2);
    }
    return this;
  };
  
  Buffer.prototype.swap64 = function swap64() {
    const len = this.length;
    if (len % 8 !== 0) {
      throw new RangeError("Buffer size must be a multiple of 64-bits");
    }
    for (let i = 0; i < len; i += 8) {
      swap(this, i, i + 7);
      swap(this, i + 1, i + 6);
      swap(this, i + 2, i + 5);
      swap(this, i + 3, i + 4);
    }
    return this;
  };
  
  Buffer.prototype.toString = function toString() {
    const length = this.length;
    if (length === 0) return "";
    if (arguments.length === 0) return utf8Slice(this, 0, length);
    return slowToString.apply(this, arguments);
  };
  
  Buffer.prototype.toLocaleString = Buffer.prototype.toString;
  
  Buffer.prototype.equals = function equals(b) {
    if (!Buffer.isBuffer(b)) throw new TypeError("Argument must be a Buffer");
    if (this === b) return true;
    return Buffer.compare(this, b) === 0;
  };
  
  Buffer.prototype.inspect = function inspect() {
    let str = "";
    const max = exports.INSPECT_MAX_BYTES;
    str = this.toString("hex", 0, max)
      .replace(/(.{2})/g, "$1 ")
      .trim();
    if (this.length > max) str += " ... ";
    return "<Buffer " + str + ">";
  };
  if (customInspectSymbol) {
    Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect;
  }
  
  Buffer.prototype.compare = function compare(
    target,
    start,
    end,
    thisStart,
    thisEnd
  ) {
    if (isInstance(target, Uint8Array)) {
      target = Buffer.from(target, target.offset, target.byteLength);
    }
    if (!Buffer.isBuffer(target)) {
      throw new TypeError(
        'The "target" argument must be one of type Buffer or Uint8Array. ' +
          "Received type " +
          typeof target
      );
    }
  
    if (start === undefined) {
      start = 0;
    }
    if (end === undefined) {
      end = target ? target.length : 0;
    }
    if (thisStart === undefined) {
      thisStart = 0;
    }
    if (thisEnd === undefined) {
      thisEnd = this.length;
    }
  
    if (
      start < 0 ||
      end > target.length ||
      thisStart < 0 ||
      thisEnd > this.length
    ) {
      throw new RangeError("out of range index");
    }
  
    if (thisStart >= thisEnd && start >= end) {
      return 0;
    }
    if (thisStart >= thisEnd) {
      return -1;
    }
    if (start >= end) {
      return 1;
    }
  
    start >>>= 0;
    end >>>= 0;
    thisStart >>>= 0;
    thisEnd >>>= 0;
  
    if (this === target) return 0;
  
    let x = thisEnd - thisStart;
    let y = end - start;
    const len = Math.min(x, y);
  
    const thisCopy = this.slice(thisStart, thisEnd);
    const targetCopy = target.slice(start, end);
  
    for (let i = 0; i < len; ++i) {
      if (thisCopy[i] !== targetCopy[i]) {
        x = thisCopy[i];
        y = targetCopy[i];
        break;
      }
    }
  
    if (x < y) return -1;
    if (y < x) return 1;
    return 0;
  };
  
  // Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
  // OR the last index of `val` in `buffer` at offset <= `byteOffset`.
  //
  // Arguments:
  // - buffer - a Buffer to search
  // - val - a string, Buffer, or number
  // - byteOffset - an index into `buffer`; will be clamped to an int32
  // - encoding - an optional encoding, relevant is val is a string
  // - dir - true for indexOf, false for lastIndexOf
  function bidirectionalIndexOf(buffer, val, byteOffset, encoding, dir) {
    // Empty buffer means no match
    if (buffer.length === 0) return -1;
  
    // Normalize byteOffset
    if (typeof byteOffset === "string") {
      encoding = byteOffset;
      byteOffset = 0;
    } else if (byteOffset > 0x7fffffff) {
      byteOffset = 0x7fffffff;
    } else if (byteOffset < -0x80000000) {
      byteOffset = -0x80000000;
    }
    byteOffset = +byteOffset; // Coerce to Number.
    if (numberIsNaN(byteOffset)) {
      // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
      byteOffset = dir ? 0 : buffer.length - 1;
    }
  
    // Normalize byteOffset: negative offsets start from the end of the buffer
    if (byteOffset < 0) byteOffset = buffer.length + byteOffset;
    if (byteOffset >= buffer.length) {
      if (dir) return -1;
      else byteOffset = buffer.length - 1;
    } else if (byteOffset < 0) {
      if (dir) byteOffset = 0;
      else return -1;
    }
  
    // Normalize val
    if (typeof val === "string") {
      val = Buffer.from(val, encoding);
    }
  
    // Finally, search either indexOf (if dir is true) or lastIndexOf
    if (Buffer.isBuffer(val)) {
      // Special case: looking for empty string/buffer always fails
      if (val.length === 0) {
        return -1;
      }
      return arrayIndexOf(buffer, val, byteOffset, encoding, dir);
    } else if (typeof val === "number") {
      val = val & 0xff; // Search for a byte value [0-255]
      if (typeof Uint8Array.prototype.indexOf === "function") {
        if (dir) {
          return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset);
        } else {
          return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset);
        }
      }
      return arrayIndexOf(buffer, [val], byteOffset, encoding, dir);
    }
  
    throw new TypeError("val must be string, number or Buffer");
  }
  
  function arrayIndexOf(arr, val, byteOffset, encoding, dir) {
    let indexSize = 1;
    let arrLength = arr.length;
    let valLength = val.length;
  
    if (encoding !== undefined) {
      encoding = String(encoding).toLowerCase();
      if (
        encoding === "ucs2" ||
        encoding === "ucs-2" ||
        encoding === "utf16le" ||
        encoding === "utf-16le"
      ) {
        if (arr.length < 2 || val.length < 2) {
          return -1;
        }
        indexSize = 2;
        arrLength /= 2;
        valLength /= 2;
        byteOffset /= 2;
      }
    }
  
    function read(buf, i) {
      if (indexSize === 1) {
        return buf[i];
      } else {
        return buf.readUInt16BE(i * indexSize);
      }
    }
  
    let i;
    if (dir) {
      let foundIndex = -1;
      for (i = byteOffset; i < arrLength; i++) {
        if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
          if (foundIndex === -1) foundIndex = i;
          if (i - foundIndex + 1 === valLength) return foundIndex * indexSize;
        } else {
          if (foundIndex !== -1) i -= i - foundIndex;
          foundIndex = -1;
        }
      }
    } else {
      if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength;
      for (i = byteOffset; i >= 0; i--) {
        let found = true;
        for (let j = 0; j < valLength; j++) {
          if (read(arr, i + j) !== read(val, j)) {
            found = false;
            break;
          }
        }
        if (found) return i;
      }
    }
  
    return -1;
  }
  
  Buffer.prototype.includes = function includes(val, byteOffset, encoding) {
    return this.indexOf(val, byteOffset, encoding) !== -1;
  };
  
  Buffer.prototype.indexOf = function indexOf(val, byteOffset, encoding) {
    return bidirectionalIndexOf(this, val, byteOffset, encoding, true);
  };
  
  Buffer.prototype.lastIndexOf = function lastIndexOf(val, byteOffset, encoding) {
    return bidirectionalIndexOf(this, val, byteOffset, encoding, false);
  };
  
  function hexWrite(buf, string, offset, length) {
    offset = Number(offset) || 0;
    const remaining = buf.length - offset;
    if (!length) {
      length = remaining;
    } else {
      length = Number(length);
      if (length > remaining) {
        length = remaining;
      }
    }
  
    const strLen = string.length;
  
    if (length > strLen / 2) {
      length = strLen / 2;
    }
    let i;
    for (i = 0; i < length; ++i) {
      const parsed = parseInt(string.substr(i * 2, 2), 16);
      if (numberIsNaN(parsed)) return i;
      buf[offset + i] = parsed;
    }
    return i;
  }
  
  function utf8Write(buf, string, offset, length) {
    return blitBuffer(
      utf8ToBytes(string, buf.length - offset),
      buf,
      offset,
      length
    );
  }
  
  function asciiWrite(buf, string, offset, length) {
    return blitBuffer(asciiToBytes(string), buf, offset, length);
  }
  
  function base64Write(buf, string, offset, length) {
    return blitBuffer(base64ToBytes(string), buf, offset, length);
  }
  
  function ucs2Write(buf, string, offset, length) {
    return blitBuffer(
      utf16leToBytes(string, buf.length - offset),
      buf,
      offset,
      length
    );
  }
  
  Buffer.prototype.write = function write(string, offset, length, encoding) {
    // Buffer#write(string)
    if (offset === undefined) {
      encoding = "utf8";
      length = this.length;
      offset = 0;
      // Buffer#write(string, encoding)
    } else if (length === undefined && typeof offset === "string") {
      encoding = offset;
      length = this.length;
      offset = 0;
      // Buffer#write(string, offset[, length][, encoding])
    } else if (isFinite(offset)) {
      offset = offset >>> 0;
      if (isFinite(length)) {
        length = length >>> 0;
        if (encoding === undefined) encoding = "utf8";
      } else {
        encoding = length;
        length = undefined;
      }
    } else {
      throw new Error(
        "Buffer.write(string, encoding, offset[, length]) is no longer supported"
      );
    }
  
    const remaining = this.length - offset;
    if (length === undefined || length > remaining) length = remaining;
  
    if (
      (string.length > 0 && (length < 0 || offset < 0)) ||
      offset > this.length
    ) {
      throw new RangeError("Attempt to write outside buffer bounds");
    }
  
    if (!encoding) encoding = "utf8";
  
    let loweredCase = false;
    for (;;) {
      switch (encoding) {
        case "hex":
          return hexWrite(this, string, offset, length);
  
        case "utf8":
        case "utf-8":
          return utf8Write(this, string, offset, length);
  
        case "ascii":
        case "latin1":
        case "binary":
          return asciiWrite(this, string, offset, length);
  
        case "base64":
          // Warning: maxLength not taken into account in base64Write
          return base64Write(this, string, offset, length);
  
        case "ucs2":
        case "ucs-2":
        case "utf16le":
        case "utf-16le":
          return ucs2Write(this, string, offset, length);
  
        default:
          if (loweredCase) throw new TypeError("Unknown encoding: " + encoding);
          encoding = ("" + encoding).toLowerCase();
          loweredCase = true;
      }
    }
  };
  
  Buffer.prototype.toJSON = function toJSON() {
    return {
      type: "Buffer",
      data: Array.prototype.slice.call(this._arr || this, 0),
    };
  };
  
  function base64Slice(buf, start, end) {
    if (start === 0 && end === buf.length) {
      return base64.fromByteArray(buf);
    } else {
      return base64.fromByteArray(buf.slice(start, end));
    }
  }
  
  function utf8Slice(buf, start, end) {
    end = Math.min(buf.length, end);
    const res = [];
  
    let i = start;
    while (i < end) {
      const firstByte = buf[i];
      let codePoint = null;
      let bytesPerSequence =
        firstByte > 0xef ? 4 : firstByte > 0xdf ? 3 : firstByte > 0xbf ? 2 : 1;
  
      if (i + bytesPerSequence <= end) {
        let secondByte, thirdByte, fourthByte, tempCodePoint;
  
        switch (bytesPerSequence) {
          case 1:
            if (firstByte < 0x80) {
              codePoint = firstByte;
            }
            break;
          case 2:
            secondByte = buf[i + 1];
            if ((secondByte & 0xc0) === 0x80) {
              tempCodePoint = ((firstByte & 0x1f) << 0x6) | (secondByte & 0x3f);
              if (tempCodePoint > 0x7f) {
                codePoint = tempCodePoint;
              }
            }
            break;
          case 3:
            secondByte = buf[i + 1];
            thirdByte = buf[i + 2];
            if ((secondByte & 0xc0) === 0x80 && (thirdByte & 0xc0) === 0x80) {
              tempCodePoint =
                ((firstByte & 0xf) << 0xc) |
                ((secondByte & 0x3f) << 0x6) |
                (thirdByte & 0x3f);
              if (
                tempCodePoint > 0x7ff &&
                (tempCodePoint < 0xd800 || tempCodePoint > 0xdfff)
              ) {
                codePoint = tempCodePoint;
              }
            }
            break;
          case 4:
            secondByte = buf[i + 1];
            thirdByte = buf[i + 2];
            fourthByte = buf[i + 3];
            if (
              (secondByte & 0xc0) === 0x80 &&
              (thirdByte & 0xc0) === 0x80 &&
              (fourthByte & 0xc0) === 0x80
            ) {
              tempCodePoint =
                ((firstByte & 0xf) << 0x12) |
                ((secondByte & 0x3f) << 0xc) |
                ((thirdByte & 0x3f) << 0x6) |
                (fourthByte & 0x3f);
              if (tempCodePoint > 0xffff && tempCodePoint < 0x110000) {
                codePoint = tempCodePoint;
              }
            }
        }
      }
  
      if (codePoint === null) {
        // we did not generate a valid codePoint so insert a
        // replacement char (U+FFFD) and advance only 1 byte
        codePoint = 0xfffd;
        bytesPerSequence = 1;
      } else if (codePoint > 0xffff) {
        // encode to utf16 (surrogate pair dance)
        codePoint -= 0x10000;
        res.push(((codePoint >>> 10) & 0x3ff) | 0xd800);
        codePoint = 0xdc00 | (codePoint & 0x3ff);
      }
  
      res.push(codePoint);
      i += bytesPerSequence;
    }
  
    return decodeCodePointsArray(res);
  }
  
  // Based on http://stackoverflow.com/a/22747272/680742, the browser with
  // the lowest limit is Chrome, with 0x10000 args.
  // We go 1 magnitude less, for safety
  const MAX_ARGUMENTS_LENGTH = 0x1000;
  
  function decodeCodePointsArray(codePoints) {
    const len = codePoints.length;
    if (len <= MAX_ARGUMENTS_LENGTH) {
      return String.fromCharCode.apply(String, codePoints); // avoid extra slice()
    }
  
    // Decode in chunks to avoid "call stack size exceeded".
    let res = "";
    let i = 0;
    while (i < len) {
      res += String.fromCharCode.apply(
        String,
        codePoints.slice(i, (i += MAX_ARGUMENTS_LENGTH))
      );
    }
    return res;
  }
  
  function asciiSlice(buf, start, end) {
    let ret = "";
    end = Math.min(buf.length, end);
  
    for (let i = start; i < end; ++i) {
      ret += String.fromCharCode(buf[i] & 0x7f);
    }
    return ret;
  }
  
  function latin1Slice(buf, start, end) {
    let ret = "";
    end = Math.min(buf.length, end);
  
    for (let i = start; i < end; ++i) {
      ret += String.fromCharCode(buf[i]);
    }
    return ret;
  }
  
  function hexSlice(buf, start, end) {
    const len = buf.length;
  
    if (!start || start < 0) start = 0;
    if (!end || end < 0 || end > len) end = len;
  
    let out = "";
    for (let i = start; i < end; ++i) {
      out += hexSliceLookupTable[buf[i]];
    }
    return out;
  }
  
  function utf16leSlice(buf, start, end) {
    const bytes = buf.slice(start, end);
    let res = "";
    // If bytes.length is odd, the last 8 bits must be ignored (same as node.js)
    for (let i = 0; i < bytes.length - 1; i += 2) {
      res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256);
    }
    return res;
  }
  
  Buffer.prototype.slice = function slice(start, end) {
    const len = this.length;
    start = ~~start;
    end = end === undefined ? len : ~~end;
  
    if (start < 0) {
      start += len;
      if (start < 0) start = 0;
    } else if (start > len) {
      start = len;
    }
  
    if (end < 0) {
      end += len;
      if (end < 0) end = 0;
    } else if (end > len) {
      end = len;
    }
  
    if (end < start) end = start;
  
    const newBuf = this.subarray(start, end);
    // Return an augmented `Uint8Array` instance
    Object.setPrototypeOf(newBuf, Buffer.prototype);
  
    return newBuf;
  };
  
  /*
   * Need to make sure that buffer isn't trying to write out of bounds.
   */
  function checkOffset(offset, ext, length) {
    if (offset % 1 !== 0 || offset < 0)
      throw new RangeError("offset is not uint");
    if (offset + ext > length)
      throw new RangeError("Trying to access beyond buffer length");
  }
  
  Buffer.prototype.readUintLE = Buffer.prototype.readUIntLE = function readUIntLE(
    offset,
    byteLength,
    noAssert
  ) {
    offset = offset >>> 0;
    byteLength = byteLength >>> 0;
    if (!noAssert) checkOffset(offset, byteLength, this.length);
  
    let val = this[offset];
    let mul = 1;
    let i = 0;
    while (++i < byteLength && (mul *= 0x100)) {
      val += this[offset + i] * mul;
    }
  
    return val;
  };
  
  Buffer.prototype.readUintBE = Buffer.prototype.readUIntBE = function readUIntBE(
    offset,
    byteLength,
    noAssert
  ) {
    offset = offset >>> 0;
    byteLength = byteLength >>> 0;
    if (!noAssert) {
      checkOffset(offset, byteLength, this.length);
    }
  
    let val = this[offset + --byteLength];
    let mul = 1;
    while (byteLength > 0 && (mul *= 0x100)) {
      val += this[offset + --byteLength] * mul;
    }
  
    return val;
  };
  
  Buffer.prototype.readUint8 = Buffer.prototype.readUInt8 = function readUInt8(
    offset,
    noAssert
  ) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 1, this.length);
    return this[offset];
  };
  
  Buffer.prototype.readUint16LE = Buffer.prototype.readUInt16LE =
    function readUInt16LE(offset, noAssert) {
      offset = offset >>> 0;
      if (!noAssert) checkOffset(offset, 2, this.length);
      return this[offset] | (this[offset + 1] << 8);
    };
  
  Buffer.prototype.readUint16BE = Buffer.prototype.readUInt16BE =
    function readUInt16BE(offset, noAssert) {
      offset = offset >>> 0;
      if (!noAssert) checkOffset(offset, 2, this.length);
      return (this[offset] << 8) | this[offset + 1];
    };
  
  Buffer.prototype.readUint32LE = Buffer.prototype.readUInt32LE =
    function readUInt32LE(offset, noAssert) {
      offset = offset >>> 0;
      if (!noAssert) checkOffset(offset, 4, this.length);
  
      return (
        (this[offset] | (this[offset + 1] << 8) | (this[offset + 2] << 16)) +
        this[offset + 3] * 0x1000000
      );
    };
  
  Buffer.prototype.readUint32BE = Buffer.prototype.readUInt32BE =
    function readUInt32BE(offset, noAssert) {
      offset = offset >>> 0;
      if (!noAssert) checkOffset(offset, 4, this.length);
  
      return (
        this[offset] * 0x1000000 +
        ((this[offset + 1] << 16) | (this[offset + 2] << 8) | this[offset + 3])
      );
    };
  
  Buffer.prototype.readBigUInt64LE = defineBigIntMethod(function readBigUInt64LE(
    offset
  ) {
    offset = offset >>> 0;
    validateNumber(offset, "offset");
    const first = this[offset];
    const last = this[offset + 7];
    if (first === undefined || last === undefined) {
      boundsError(offset, this.length - 8);
    }
  
    const lo =
      first +
      this[++offset] * 2 ** 8 +
      this[++offset] * 2 ** 16 +
      this[++offset] * 2 ** 24;
  
    const hi =
      this[++offset] +
      this[++offset] * 2 ** 8 +
      this[++offset] * 2 ** 16 +
      last * 2 ** 24;
  
    return BigInt(lo) + (BigInt(hi) << BigInt(32));
  });
  
  Buffer.prototype.readBigUInt64BE = defineBigIntMethod(function readBigUInt64BE(
    offset
  ) {
    offset = offset >>> 0;
    validateNumber(offset, "offset");
    const first = this[offset];
    const last = this[offset + 7];
    if (first === undefined || last === undefined) {
      boundsError(offset, this.length - 8);
    }
  
    const hi =
      first * 2 ** 24 +
      this[++offset] * 2 ** 16 +
      this[++offset] * 2 ** 8 +
      this[++offset];
  
    const lo =
      this[++offset] * 2 ** 24 +
      this[++offset] * 2 ** 16 +
      this[++offset] * 2 ** 8 +
      last;
  
    return (BigInt(hi) << BigInt(32)) + BigInt(lo);
  });
  
  Buffer.prototype.readIntLE = function readIntLE(offset, byteLength, noAssert) {
    offset = offset >>> 0;
    byteLength = byteLength >>> 0;
    if (!noAssert) checkOffset(offset, byteLength, this.length);
  
    let val = this[offset];
    let mul = 1;
    let i = 0;
    while (++i < byteLength && (mul *= 0x100)) {
      val += this[offset + i] * mul;
    }
    mul *= 0x80;
  
    if (val >= mul) val -= Math.pow(2, 8 * byteLength);
  
    return val;
  };
  
  Buffer.prototype.readIntBE = function readIntBE(offset, byteLength, noAssert) {
    offset = offset >>> 0;
    byteLength = byteLength >>> 0;
    if (!noAssert) checkOffset(offset, byteLength, this.length);
  
    let i = byteLength;
    let mul = 1;
    let val = this[offset + --i];
    while (i > 0 && (mul *= 0x100)) {
      val += this[offset + --i] * mul;
    }
    mul *= 0x80;
  
    if (val >= mul) val -= Math.pow(2, 8 * byteLength);
  
    return val;
  };
  
  Buffer.prototype.readInt8 = function readInt8(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 1, this.length);
    if (!(this[offset] & 0x80)) return this[offset];
    return (0xff - this[offset] + 1) * -1;
  };
  
  Buffer.prototype.readInt16LE = function readInt16LE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 2, this.length);
    const val = this[offset] | (this[offset + 1] << 8);
    return val & 0x8000 ? val | 0xffff0000 : val;
  };
  
  Buffer.prototype.readInt16BE = function readInt16BE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 2, this.length);
    const val = this[offset + 1] | (this[offset] << 8);
    return val & 0x8000 ? val | 0xffff0000 : val;
  };
  
  Buffer.prototype.readInt32LE = function readInt32LE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 4, this.length);
  
    return (
      this[offset] |
      (this[offset + 1] << 8) |
      (this[offset + 2] << 16) |
      (this[offset + 3] << 24)
    );
  };
  
  Buffer.prototype.readInt32BE = function readInt32BE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 4, this.length);
  
    return (
      (this[offset] << 24) |
      (this[offset + 1] << 16) |
      (this[offset + 2] << 8) |
      this[offset + 3]
    );
  };
  
  Buffer.prototype.readBigInt64LE = defineBigIntMethod(function readBigInt64LE(
    offset
  ) {
    offset = offset >>> 0;
    validateNumber(offset, "offset");
    const first = this[offset];
    const last = this[offset + 7];
    if (first === undefined || last === undefined) {
      boundsError(offset, this.length - 8);
    }
  
    const val =
      this[offset + 4] +
      this[offset + 5] * 2 ** 8 +
      this[offset + 6] * 2 ** 16 +
      (last << 24); // Overflow
  
    return (
      (BigInt(val) << BigInt(32)) +
      BigInt(
        first +
          this[++offset] * 2 ** 8 +
          this[++offset] * 2 ** 16 +
          this[++offset] * 2 ** 24
      )
    );
  });
  
  Buffer.prototype.readBigInt64BE = defineBigIntMethod(function readBigInt64BE(
    offset
  ) {
    offset = offset >>> 0;
    validateNumber(offset, "offset");
    const first = this[offset];
    const last = this[offset + 7];
    if (first === undefined || last === undefined) {
      boundsError(offset, this.length - 8);
    }
  
    const val =
      (first << 24) + // Overflow
      this[++offset] * 2 ** 16 +
      this[++offset] * 2 ** 8 +
      this[++offset];
  
    return (
      (BigInt(val) << BigInt(32)) +
      BigInt(
        this[++offset] * 2 ** 24 +
          this[++offset] * 2 ** 16 +
          this[++offset] * 2 ** 8 +
          last
      )
    );
  });
  
  Buffer.prototype.readFloatLE = function readFloatLE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 4, this.length);
    return ieee754.read(this, offset, true, 23, 4);
  };
  
  Buffer.prototype.readFloatBE = function readFloatBE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 4, this.length);
    return ieee754.read(this, offset, false, 23, 4);
  };
  
  Buffer.prototype.readDoubleLE = function readDoubleLE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 8, this.length);
    return ieee754.read(this, offset, true, 52, 8);
  };
  
  Buffer.prototype.readDoubleBE = function readDoubleBE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 8, this.length);
    return ieee754.read(this, offset, false, 52, 8);
  };
  
  function checkInt(buf, value, offset, ext, max, min) {
    if (!Buffer.isBuffer(buf))
      throw new TypeError('"buffer" argument must be a Buffer instance');
    if (value > max || value < min)
      throw new RangeError('"value" argument is out of bounds');
    if (offset + ext > buf.length) throw new RangeError("Index out of range");
  }
  
  Buffer.prototype.writeUintLE = Buffer.prototype.writeUIntLE =
    function writeUIntLE(value, offset, byteLength, noAssert) {
      value = +value;
      offset = offset >>> 0;
      byteLength = byteLength >>> 0;
      if (!noAssert) {
        const maxBytes = Math.pow(2, 8 * byteLength) - 1;
        checkInt(this, value, offset, byteLength, maxBytes, 0);
      }
  
      let mul = 1;
      let i = 0;
      this[offset] = value & 0xff;
      while (++i < byteLength && (mul *= 0x100)) {
        this[offset + i] = (value / mul) & 0xff;
      }
  
      return offset + byteLength;
    };
  
  Buffer.prototype.writeUintBE = Buffer.prototype.writeUIntBE =
    function writeUIntBE(value, offset, byteLength, noAssert) {
      value = +value;
      offset = offset >>> 0;
      byteLength = byteLength >>> 0;
      if (!noAssert) {
        const maxBytes = Math.pow(2, 8 * byteLength) - 1;
        checkInt(this, value, offset, byteLength, maxBytes, 0);
      }
  
      let i = byteLength - 1;
      let mul = 1;
      this[offset + i] = value & 0xff;
      while (--i >= 0 && (mul *= 0x100)) {
        this[offset + i] = (value / mul) & 0xff;
      }
  
      return offset + byteLength;
    };
  
  Buffer.prototype.writeUint8 = Buffer.prototype.writeUInt8 = function writeUInt8(
    value,
    offset,
    noAssert
  ) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0);
    this[offset] = value & 0xff;
    return offset + 1;
  };
  
  Buffer.prototype.writeUint16LE = Buffer.prototype.writeUInt16LE =
    function writeUInt16LE(value, offset, noAssert) {
      value = +value;
      offset = offset >>> 0;
      if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0);
      this[offset] = value & 0xff;
      this[offset + 1] = value >>> 8;
      return offset + 2;
    };
  
  Buffer.prototype.writeUint16BE = Buffer.prototype.writeUInt16BE =
    function writeUInt16BE(value, offset, noAssert) {
      value = +value;
      offset = offset >>> 0;
      if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0);
      this[offset] = value >>> 8;
      this[offset + 1] = value & 0xff;
      return offset + 2;
    };
  
  Buffer.prototype.writeUint32LE = Buffer.prototype.writeUInt32LE =
    function writeUInt32LE(value, offset, noAssert) {
      value = +value;
      offset = offset >>> 0;
      if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0);
      this[offset + 3] = value >>> 24;
      this[offset + 2] = value >>> 16;
      this[offset + 1] = value >>> 8;
      this[offset] = value & 0xff;
      return offset + 4;
    };
  
  Buffer.prototype.writeUint32BE = Buffer.prototype.writeUInt32BE =
    function writeUInt32BE(value, offset, noAssert) {
      value = +value;
      offset = offset >>> 0;
      if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0);
      this[offset] = value >>> 24;
      this[offset + 1] = value >>> 16;
      this[offset + 2] = value >>> 8;
      this[offset + 3] = value & 0xff;
      return offset + 4;
    };
  
  function wrtBigUInt64LE(buf, value, offset, min, max) {
    checkIntBI(value, min, max, buf, offset, 7);
  
    let lo = Number(value & BigInt(0xffffffff));
    buf[offset++] = lo;
    lo = lo >> 8;
    buf[offset++] = lo;
    lo = lo >> 8;
    buf[offset++] = lo;
    lo = lo >> 8;
    buf[offset++] = lo;
    let hi = Number((value >> BigInt(32)) & BigInt(0xffffffff));
    buf[offset++] = hi;
    hi = hi >> 8;
    buf[offset++] = hi;
    hi = hi >> 8;
    buf[offset++] = hi;
    hi = hi >> 8;
    buf[offset++] = hi;
    return offset;
  }
  
  function wrtBigUInt64BE(buf, value, offset, min, max) {
    checkIntBI(value, min, max, buf, offset, 7);
  
    let lo = Number(value & BigInt(0xffffffff));
    buf[offset + 7] = lo;
    lo = lo >> 8;
    buf[offset + 6] = lo;
    lo = lo >> 8;
    buf[offset + 5] = lo;
    lo = lo >> 8;
    buf[offset + 4] = lo;
    let hi = Number((value >> BigInt(32)) & BigInt(0xffffffff));
    buf[offset + 3] = hi;
    hi = hi >> 8;
    buf[offset + 2] = hi;
    hi = hi >> 8;
    buf[offset + 1] = hi;
    hi = hi >> 8;
    buf[offset] = hi;
    return offset + 8;
  }
  
  Buffer.prototype.writeBigUInt64LE = defineBigIntMethod(
    function writeBigUInt64LE(value, offset = 0) {
      return wrtBigUInt64LE(
        this,
        value,
        offset,
        BigInt(0),
        BigInt("0xffffffffffffffff")
      );
    }
  );
  
  Buffer.prototype.writeBigUInt64BE = defineBigIntMethod(
    function writeBigUInt64BE(value, offset = 0) {
      return wrtBigUInt64BE(
        this,
        value,
        offset,
        BigInt(0),
        BigInt("0xffffffffffffffff")
      );
    }
  );
  
  Buffer.prototype.writeIntLE = function writeIntLE(
    value,
    offset,
    byteLength,
    noAssert
  ) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) {
      const limit = Math.pow(2, 8 * byteLength - 1);
  
      checkInt(this, value, offset, byteLength, limit - 1, -limit);
    }
  
    let i = 0;
    let mul = 1;
    let sub = 0;
    this[offset] = value & 0xff;
    while (++i < byteLength && (mul *= 0x100)) {
      if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
        sub = 1;
      }
      this[offset + i] = (((value / mul) >> 0) - sub) & 0xff;
    }
  
    return offset + byteLength;
  };
  
  Buffer.prototype.writeIntBE = function writeIntBE(
    value,
    offset,
    byteLength,
    noAssert
  ) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) {
      const limit = Math.pow(2, 8 * byteLength - 1);
  
      checkInt(this, value, offset, byteLength, limit - 1, -limit);
    }
  
    let i = byteLength - 1;
    let mul = 1;
    let sub = 0;
    this[offset + i] = value & 0xff;
    while (--i >= 0 && (mul *= 0x100)) {
      if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
        sub = 1;
      }
      this[offset + i] = (((value / mul) >> 0) - sub) & 0xff;
    }
  
    return offset + byteLength;
  };
  
  Buffer.prototype.writeInt8 = function writeInt8(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80);
    if (value < 0) value = 0xff + value + 1;
    this[offset] = value & 0xff;
    return offset + 1;
  };
  
  Buffer.prototype.writeInt16LE = function writeInt16LE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000);
    this[offset] = value & 0xff;
    this[offset + 1] = value >>> 8;
    return offset + 2;
  };
  
  Buffer.prototype.writeInt16BE = function writeInt16BE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000);
    this[offset] = value >>> 8;
    this[offset + 1] = value & 0xff;
    return offset + 2;
  };
  
  Buffer.prototype.writeInt32LE = function writeInt32LE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000);
    this[offset] = value & 0xff;
    this[offset + 1] = value >>> 8;
    this[offset + 2] = value >>> 16;
    this[offset + 3] = value >>> 24;
    return offset + 4;
  };
  
  Buffer.prototype.writeInt32BE = function writeInt32BE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000);
    if (value < 0) value = 0xffffffff + value + 1;
    this[offset] = value >>> 24;
    this[offset + 1] = value >>> 16;
    this[offset + 2] = value >>> 8;
    this[offset + 3] = value & 0xff;
    return offset + 4;
  };
  
  Buffer.prototype.writeBigInt64LE = defineBigIntMethod(function writeBigInt64LE(
    value,
    offset = 0
  ) {
    return wrtBigUInt64LE(
      this,
      value,
      offset,
      -BigInt("0x8000000000000000"),
      BigInt("0x7fffffffffffffff")
    );
  });
  
  Buffer.prototype.writeBigInt64BE = defineBigIntMethod(function writeBigInt64BE(
    value,
    offset = 0
  ) {
    return wrtBigUInt64BE(
      this,
      value,
      offset,
      -BigInt("0x8000000000000000"),
      BigInt("0x7fffffffffffffff")
    );
  });
  
  function checkIEEE754(buf, value, offset, ext, max, min) {
    if (offset + ext > buf.length) throw new RangeError("Index out of range");
    if (offset < 0) throw new RangeError("Index out of range");
  }
  
  function writeFloat(buf, value, offset, littleEndian, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) {
      checkIEEE754(
        buf,
        value,
        offset,
        4,
        3.4028234663852886e38,
        -3.4028234663852886e38
      );
    }
    ieee754.write(buf, value, offset, littleEndian, 23, 4);
    return offset + 4;
  }
  
  Buffer.prototype.writeFloatLE = function writeFloatLE(value, offset, noAssert) {
    return writeFloat(this, value, offset, true, noAssert);
  };
  
  Buffer.prototype.writeFloatBE = function writeFloatBE(value, offset, noAssert) {
    return writeFloat(this, value, offset, false, noAssert);
  };
  
  function writeDouble(buf, value, offset, littleEndian, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) {
      checkIEEE754(
        buf,
        value,
        offset,
        8,
        1.7976931348623157e308,
        -1.7976931348623157e308
      );
    }
    ieee754.write(buf, value, offset, littleEndian, 52, 8);
    return offset + 8;
  }
  
  Buffer.prototype.writeDoubleLE = function writeDoubleLE(
    value,
    offset,
    noAssert
  ) {
    return writeDouble(this, value, offset, true, noAssert);
  };
  
  Buffer.prototype.writeDoubleBE = function writeDoubleBE(
    value,
    offset,
    noAssert
  ) {
    return writeDouble(this, value, offset, false, noAssert);
  };
  
  // copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
  Buffer.prototype.copy = function copy(target, targetStart, start, end) {
    if (!Buffer.isBuffer(target))
      throw new TypeError("argument should be a Buffer");
    if (!start) start = 0;
    if (!end && end !== 0) end = this.length;
    if (targetStart >= target.length) targetStart = target.length;
    if (!targetStart) targetStart = 0;
    if (end > 0 && end < start) end = start;
  
    // Copy 0 bytes; we're done
    if (end === start) return 0;
    if (target.length === 0 || this.length === 0) return 0;
  
    // Fatal error conditions
    if (targetStart < 0) {
      throw new RangeError("targetStart out of bounds");
    }
    if (start < 0 || start >= this.length)
      throw new RangeError("Index out of range");
    if (end < 0) throw new RangeError("sourceEnd out of bounds");
  
    // Are we oob?
    if (end > this.length) end = this.length;
    if (target.length - targetStart < end - start) {
      end = target.length - targetStart + start;
    }
  
    const len = end - start;
  
    if (
      this === target &&
      typeof Uint8Array.prototype.copyWithin === "function"
    ) {
      // Use built-in when available, missing from IE11
      this.copyWithin(targetStart, start, end);
    } else {
      Uint8Array.prototype.set.call(
        target,
        this.subarray(start, end),
        targetStart
      );
    }
  
    return len;
  };
  
  // Usage:
  //    buffer.fill(number[, offset[, end]])
  //    buffer.fill(buffer[, offset[, end]])
  //    buffer.fill(string[, offset[, end]][, encoding])
  Buffer.prototype.fill = function fill(val, start, end, encoding) {
    // Handle string cases:
    if (typeof val === "string") {
      if (typeof start === "string") {
        encoding = start;
        start = 0;
        end = this.length;
      } else if (typeof end === "string") {
        encoding = end;
        end = this.length;
      }
      if (encoding !== undefined && typeof encoding !== "string") {
        throw new TypeError("encoding must be a string");
      }
      if (typeof encoding === "string" && !Buffer.isEncoding(encoding)) {
        throw new TypeError("Unknown encoding: " + encoding);
      }
      if (val.length === 1) {
        const code = val.charCodeAt(0);
        if ((encoding === "utf8" && code < 128) || encoding === "latin1") {
          // Fast path: If `val` fits into a single byte, use that numeric value.
          val = code;
        }
      }
    } else if (typeof val === "number") {
      val = val & 255;
    } else if (typeof val === "boolean") {
      val = Number(val);
    }
  
    // Invalid ranges are not set to a default, so can range check early.
    if (start < 0 || this.length < start || this.length < end) {
      throw new RangeError("Out of range index");
    }
  
    if (end <= start) {
      return this;
    }
  
    start = start >>> 0;
    end = end === undefined ? this.length : end >>> 0;
  
    if (!val) val = 0;
  
    let i;
    if (typeof val === "number") {
      for (i = start; i < end; ++i) {
        this[i] = val;
      }
    } else {
      const bytes = Buffer.isBuffer(val) ? val : Buffer.from(val, encoding);
      const len = bytes.length;
      if (len === 0) {
        throw new TypeError(
          'The value "' + val + '" is invalid for argument "value"'
        );
      }
      for (i = 0; i < end - start; ++i) {
        this[i + start] = bytes[i % len];
      }
    }
  
    return this;
  };
  
  // CUSTOM ERRORS
  // =============
  
  // Simplified versions from Node, changed for Buffer-only usage
  const errors = {};
  function E(sym, getMessage, Base) {
    errors[sym] = class NodeError extends Base {
      constructor() {
        super();
  
        Object.defineProperty(this, "message", {
          value: getMessage.apply(this, arguments),
          writable: true,
          configurable: true,
        });
  
        // Add the error code to the name to include it in the stack trace.
        this.name = `${this.name} [${sym}]`;
        // Access the stack to generate the error message including the error code
        // from the name.
        this.stack; // eslint-disable-line no-unused-expressions
        // Reset the name to the actual name.
        delete this.name;
      }
  
      get code() {
        return sym;
      }
  
      set code(value) {
        Object.defineProperty(this, "code", {
          configurable: true,
          enumerable: true,
          value,
          writable: true,
        });
      }
  
      toString() {
        return `${this.name} [${sym}]: ${this.message}`;
      }
    };
  }
  
  E(
    "ERR_BUFFER_OUT_OF_BOUNDS",
    function (name) {
      if (name) {
        return `${name} is outside of buffer bounds`;
      }
  
      return "Attempt to access memory outside buffer bounds";
    },
    RangeError
  );
  E(
    "ERR_INVALID_ARG_TYPE",
    function (name, actual) {
      return `The "${name}" argument must be of type number. Received type ${typeof actual}`;
    },
    TypeError
  );
  E(
    "ERR_OUT_OF_RANGE",
    function (str, range, input) {
      let msg = `The value of "${str}" is out of range.`;
      let received = input;
      if (Number.isInteger(input) && Math.abs(input) > 2 ** 32) {
        received = addNumericalSeparator(String(input));
      } else if (typeof input === "bigint") {
        received = String(input);
        if (
          input > BigInt(2) ** BigInt(32) ||
          input < -(BigInt(2) ** BigInt(32))
        ) {
          received = addNumericalSeparator(received);
        }
        received += "n";
      }
      msg += ` It must be ${range}. Received ${received}`;
      return msg;
    },
    RangeError
  );
  
  function addNumericalSeparator(val) {
    let res = "";
    let i = val.length;
    const start = val[0] === "-" ? 1 : 0;
    for (; i >= start + 4; i -= 3) {
      res = `_${val.slice(i - 3, i)}${res}`;
    }
    return `${val.slice(0, i)}${res}`;
  }
  
  // CHECK FUNCTIONS
  // ===============
  
  function checkBounds(buf, offset, byteLength) {
    validateNumber(offset, "offset");
    if (buf[offset] === undefined || buf[offset + byteLength] === undefined) {
      boundsError(offset, buf.length - (byteLength + 1));
    }
  }
  
  function checkIntBI(value, min, max, buf, offset, byteLength) {
    if (value > max || value < min) {
      const n = typeof min === "bigint" ? "n" : "";
      let range;
      if (byteLength > 3) {
        if (min === 0 || min === BigInt(0)) {
          range = `>= 0${n} and < 2${n} ** ${(byteLength + 1) * 8}${n}`;
        } else {
          range =
            `>= -(2${n} ** ${(byteLength + 1) * 8 - 1}${n}) and < 2 ** ` +
            `${(byteLength + 1) * 8 - 1}${n}`;
        }
      } else {
        range = `>= ${min}${n} and <= ${max}${n}`;
      }
      throw new errors.ERR_OUT_OF_RANGE("value", range, value);
    }
    checkBounds(buf, offset, byteLength);
  }
  
  function validateNumber(value, name) {
    if (typeof value !== "number") {
      throw new errors.ERR_INVALID_ARG_TYPE(name, "number", value);
    }
  }
  
  function boundsError(value, length, type) {
    if (Math.floor(value) !== value) {
      validateNumber(value, type);
      throw new errors.ERR_OUT_OF_RANGE(type || "offset", "an integer", value);
    }
  
    if (length < 0) {
      throw new errors.ERR_BUFFER_OUT_OF_BOUNDS();
    }
  
    throw new errors.ERR_OUT_OF_RANGE(
      type || "offset",
      `>= ${type ? 1 : 0} and <= ${length}`,
      value
    );
  }
  
  // HELPER FUNCTIONS
  // ================
  
  const INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g;
  
  function base64clean(str) {
    // Node takes equal signs as end of the Base64 encoding
    str = str.split("=")[0];
    // Node strips out invalid characters like \n and \t from the string, base64-js does not
    str = str.trim().replace(INVALID_BASE64_RE, "");
    // Node converts strings with length < 2 to ''
    if (str.length < 2) return "";
    // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
    while (str.length % 4 !== 0) {
      str = str + "=";
    }
    return str;
  }
  
  function utf8ToBytes(string, units) {
    units = units || Infinity;
    let codePoint;
    const length = string.length;
    let leadSurrogate = null;
    const bytes = [];
  
    for (let i = 0; i < length; ++i) {
      codePoint = string.charCodeAt(i);
  
      // is surrogate component
      if (codePoint > 0xd7ff && codePoint < 0xe000) {
        // last char was a lead
        if (!leadSurrogate) {
          // no lead yet
          if (codePoint > 0xdbff) {
            // unexpected trail
            if ((units -= 3) > -1) bytes.push(0xef, 0xbf, 0xbd);
            continue;
          } else if (i + 1 === length) {
            // unpaired lead
            if ((units -= 3) > -1) bytes.push(0xef, 0xbf, 0xbd);
            continue;
          }
  
          // valid lead
          leadSurrogate = codePoint;
  
          continue;
        }
  
        // 2 leads in a row
        if (codePoint < 0xdc00) {
          if ((units -= 3) > -1) bytes.push(0xef, 0xbf, 0xbd);
          leadSurrogate = codePoint;
          continue;
        }
  
        // valid surrogate pair
        codePoint =
          (((leadSurrogate - 0xd800) << 10) | (codePoint - 0xdc00)) + 0x10000;
      } else if (leadSurrogate) {
        // valid bmp char, but last char was a lead
        if ((units -= 3) > -1) bytes.push(0xef, 0xbf, 0xbd);
      }
  
      leadSurrogate = null;
  
      // encode utf8
      if (codePoint < 0x80) {
        if ((units -= 1) < 0) break;
        bytes.push(codePoint);
      } else if (codePoint < 0x800) {
        if ((units -= 2) < 0) break;
        bytes.push((codePoint >> 0x6) | 0xc0, (codePoint & 0x3f) | 0x80);
      } else if (codePoint < 0x10000) {
        if ((units -= 3) < 0) break;
        bytes.push(
          (codePoint >> 0xc) | 0xe0,
          ((codePoint >> 0x6) & 0x3f) | 0x80,
          (codePoint & 0x3f) | 0x80
        );
      } else if (codePoint < 0x110000) {
        if ((units -= 4) < 0) break;
        bytes.push(
          (codePoint >> 0x12) | 0xf0,
          ((codePoint >> 0xc) & 0x3f) | 0x80,
          ((codePoint >> 0x6) & 0x3f) | 0x80,
          (codePoint & 0x3f) | 0x80
        );
      } else {
        throw new Error("Invalid code point");
      }
    }
  
    return bytes;
  }
  
  function asciiToBytes(str) {
    const byteArray = [];
    for (let i = 0; i < str.length; ++i) {
      // Node's code seems to be doing this and not & 0x7F..
      byteArray.push(str.charCodeAt(i) & 0xff);
    }
    return byteArray;
  }
  
  function utf16leToBytes(str, units) {
    let c, hi, lo;
    const byteArray = [];
    for (let i = 0; i < str.length; ++i) {
      if ((units -= 2) < 0) break;
  
      c = str.charCodeAt(i);
      hi = c >> 8;
      lo = c % 256;
      byteArray.push(lo);
      byteArray.push(hi);
    }
  
    return byteArray;
  }
  
  function base64ToBytes(str) {
    return base64.toByteArray(base64clean(str));
  }
  
  function blitBuffer(src, dst, offset, length) {
    let i;
    for (i = 0; i < length; ++i) {
      if (i + offset >= dst.length || i >= src.length) break;
      dst[i + offset] = src[i];
    }
    return i;
  }
  
  // ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
  // the `instanceof` check but they should be treated as of that type.
  // See: https://github.com/feross/buffer/issues/166
  function isInstance(obj, type) {
    return (
      obj instanceof type ||
      (obj != null &&
        obj.constructor != null &&
        obj.constructor.name != null &&
        obj.constructor.name === type.name)
    );
  }
  function numberIsNaN(obj) {
    // For IE11 support
    return obj !== obj; // eslint-disable-line no-self-compare
  }
  
  // Create lookup table for `toString('hex')`
  // See: https://github.com/feross/buffer/issues/219
  const hexSliceLookupTable = (function () {
    const alphabet = "0123456789abcdef";
    const table = new Array(256);
    for (let i = 0; i < 16; ++i) {
      const i16 = i * 16;
      for (let j = 0; j < 16; ++j) {
        table[i16 + j] = alphabet[i] + alphabet[j];
      }
    }
    return table;
  })();
  
  // Return not function with Error if BigInt not supported
  function defineBigIntMethod(fn) {
    return typeof BigInt === "undefined" ? BufferBigIntNotDefined : fn;
  }
  
  function BufferBigIntNotDefined() {
    throw new Error("BigInt not supported");
  }
  