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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 DumpMany(objs):
 """Stringifies a sequence of Python objects to a multi-document YAML. Args: objs: An iterable of Python objects to convert to YAML. Returns: A multi-document YAML representation of the given objects. """

  precondition.AssertIterableType(objs, object)

  text = yaml.safe_dump_all(objs, default_flow_style=False, allow_unicode=True)

  if compatibility.PY2:
    text = text.decode("utf-8")

  return text