code: def _str_warnings(self):
      out = []
      if self["Warnings"]:
          out = [".. warning::", ""]
          out += self._str_indent(self["Warnings"])
      return out
  
imports: from __future__ import division, absolute_import, print_function
  import sys
  import re
  import inspect
  import textwrap
  import pydoc
  import sphinx
  import collections
  from .docscrape import NumpyDocString, FunctionDoc, ClassDoc
label_desc: Use image node_id 15 for calling the SphinxDocString obj's underlying member method code with example usage: obj._str_warnings() and returns: out