docs: 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