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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def Dump(obj, sort_keys = False, encoder = None):
 """Stringifies a Python object into its JSON representation. Args: obj: A Python object to convert to JSON. sort_keys: If True, output dictionaries keys in sorted (ascending) order. encoder: An (optional) encoder class to use. Returns: A JSON representation of the given object. """

  # Python 2 json.dumps expects separators as a tuple of bytes, while
  # Python 3 expects them to be a tuple of unicode strings. Pytype
  # is too dumb to infer the result of the if statement that sets
  # _SEPARATORS and complains when running in Python 3 mode.
  text = json.dumps(
      obj,
      indent=2,
      sort_keys=sort_keys,
      ensure_ascii=False,
      cls=encoder,
      separators=_SEPARATORS)  # pytype: disable=wrong-arg-types

  # `text` is an instance of `bytes` if the object to serialize does not contain
  # any unicode characters, otherwise it is `unicode`. See [1] for details.
  #
  # [1]: https://bugs.python.org/issue13769
  if compatibility.PY2 and isinstance(text, bytes):
    text = text.decode("utf-8")  # pytype: disable=attribute-error

  return text