code: def _str_signature(self):
      return [""]
      if self["Signature"]:
          return ["``%s``" % self["Signature"]] + [""]
      else:
          return [""]
  
imports: import sys, re, inspect, textwrap, pydoc
  import sphinx
  import collections
  from .docscrape import NumpyDocString, FunctionDoc, ClassDoc
label_desc: Use image node_id 6 for calling the SphinxDocString obj's underlying member method code with example usage: obj._str_signature() and returns: list, unknown, list