whole_func_string: function isPlainObject(value) {
  	  if (!isObjectLike$1(value) ||
  	      objectToString$1.call(value) != objectTag || isHostObject$1(value)) {
  	    return false;
  	  }
  	  var proto = getPrototype(value);
  	  if (proto === null) {
  	    return true;
  	  }
  	  var Ctor = hasOwnProperty$1.call(proto, 'constructor') && proto.constructor;
  	  return (typeof Ctor == 'function' &&
  	    Ctor instanceof Ctor && funcToString$1.call(Ctor) == objectCtorString);
  	}
func_code_string: function isPlainObject(value) {
  	  if (!isObjectLike$1(value) ||
  	      objectToString$1.call(value) != objectTag || isHostObject$1(value)) {
  	    return false;
  	  }
  	  var proto = getPrototype(value);
  	  if (proto === null) {
  	    return true;
  	  }
  	  var Ctor = hasOwnProperty$1.call(proto, 'constructor') && proto.constructor;
  	  return (typeof Ctor == 'function' &&
  	    Ctor instanceof Ctor && funcToString$1.call(Ctor) == objectCtorString);
  	}
func_documentation_string: Checks if `value` is a plain object, that is, an object created by the
  `Object` constructor or one with a `[[Prototype]]` of `null`.
  
  @static
  @memberOf _
  @since 0.8.0
  @category Lang
  @param {*} value The value to check.
  @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
  @example
  
  function Foo() {
  this.a = 1;
  }
  
  _.isPlainObject(new Foo);
  // => false
  
  _.isPlainObject([1, 2, 3]);
  // => false
  
  _.isPlainObject({ 'x': 0, 'y': 0 });
  // => true
  
  _.isPlainObject(Object.create(null));
  // => true