code: def __str__(self):
      out = ""
  
      func, func_name = self.get_func()
  
      roles = {"func": "function", "meth": "method"}
  
      if self._role:
          if self._role not in roles:
              print(f"Warning: invalid role {self._role}")
          self_role = roles.get(self._role, "")
          out += f".. {self_role}:: {func_name}\n    \n\n"
  
      out += super(FunctionDoc, self).__str__(func_role=self._role)
      return out
  
imports: import inspect
  import textwrap
  import re
  import pydoc
  from warnings import warn
  import collections
  import sys
  from packaging.version import Version
label_desc: Use image node_id 3 for calling the FunctionDoc obj's underlying member method code with example usage: obj.__str__() and returns: out