code: def echo(
      message: t.Optional[t.Any] = None,
      file: t.Optional[t.IO[t.Any]] = None,
      nl: bool = True,
      err: bool = False,
      color: t.Optional[bool] = None,
  ) -> None:
      """Print a message and newline to stdout or a file. This should be
      used instead of :func:`print` because it provides better support
      for different data, files, and environments.
  
      Compared to :func:`print`, this does the following:
  
      -   Ensures that the output encoding is not misconfigured on Linux.
      -   Supports Unicode in the Windows console.
      -   Supports writing to binary outputs, and supports writing bytes
          to text outputs.
      -   Supports colors and styles on Windows.
      -   Removes ANSI color and style codes if the output does not look
          like an interactive terminal.
      -   Always flushes the output.
  
      :param message: The string or bytes to output. Other objects are
          converted to strings.
      :param file: The file to write to. Defaults to ``stdout``.
      :param err: Write to ``stderr`` instead of ``stdout``.
      :param nl: Print a newline after the message. Enabled by default.
      :param color: Force showing or hiding colors and other styles. By
          default Click will remove color if the output does not look like
          an interactive terminal.
  
      .. versionchanged:: 6.0
          Support Unicode output on the Windows console. Click does not
          modify ``sys.stdout``, so ``sys.stdout.write()`` and ``print()``
          will still not support Unicode.
  
      .. versionchanged:: 4.0
          Added the ``color`` parameter.
  
      .. versionadded:: 3.0
          Added the ``err`` parameter.
  
      .. versionchanged:: 2.0
          Support colors on Windows if colorama is installed.
      """
      if file is None:
          if err:
              file = _default_text_stderr()
          else:
              file = _default_text_stdout()
  
          # There are no standard streams attached to write to. For example,
          # pythonw on Windows.
          if file is None:
              return
  
      # Convert non bytes/text into the native string type.
      if message is not None and not isinstance(
          message, (str, bytes, bytearray)
      ):
          out: t.Optional[t.Union[str, bytes]] = str(message)
      else:
          out = message
  
      if nl:
          out = out or ""
          if isinstance(out, str):
              out += "\n"
          else:
              out += b"\n"
  
      if not out:
          file.flush()
          return
  
      # If there is a message and the value looks like bytes, we manually
      # need to find the binary stream and write the message in there.
      # This is done separately so that most stream types will work as you
      # would expect. Eg: you can write to StringIO for other cases.
      if isinstance(out, (bytes, bytearray)):
          binary_file = _find_binary_writer(file)
  
          if binary_file is not None:
              file.flush()
              binary_file.write(out)
              binary_file.flush()
              return
  
      # ANSI style code support. For no message or bytes, nothing happens.
      # When outputting to a file instead of a terminal, strip codes.
      else:
          color = resolve_color_default(color)
  
          if should_strip_ansi(file, color):
              out = strip_ansi(out)
          elif WIN:
              if auto_wrap_for_ansi is not None:
                  file = auto_wrap_for_ansi(file)  # type: ignore
              elif not color:
                  out = strip_ansi(out)
  
      file.write(out)  # type: ignore
      file.flush()
  
imports: import os
  import re
  import sys
  import typing
  from functools import update_wrapper
  from types import ModuleType
  from types import TracebackType
  from ._compat import _default_text_stderr
  from ._compat import _default_text_stdout
  from ._compat import _find_binary_writer
  from ._compat import auto_wrap_for_ansi
  from ._compat import binary_streams
  from ._compat import open_stream
  from ._compat import should_strip_ansi
  from ._compat import strip_ansi
  from ._compat import text_streams
  from ._compat import WIN
  from .globals import resolve_color_default
label_desc: Use image node_id 5 for calling a global function with example usage: echo(message, file, nl, err, color) without return types