parameters: (func)
return_statement: return ArgSpec(args, varargs, varkw, func.func_defaults)
docstring: Get the names and default values of a function's arguments.
  
      A tuple of four things is returned: (args, varargs, varkw, defaults).
      'args' is a list of the argument names (it may contain nested lists).
      'varargs' and 'varkw' are the names of the * and ** arguments or None.
      'defaults' is an n-tuple of the default values of the last n arguments.
docstring_summary: Get the names and default values of a function's arguments.
docstring_tokens: Get the names and default values of a function s arguments .
function: def getargspec(func):
      """Get the names and default values of a function's arguments.
  
      A tuple of four things is returned: (args, varargs, varkw, defaults).
      'args' is a list of the argument names (it may contain nested lists).
      'varargs' and 'varkw' are the names of the * and ** arguments or None.
      'defaults' is an n-tuple of the default values of the last n arguments.
      """
  
      if ismethod(func):
          func = func.im_func
      if not isfunction(func):
          raise TypeError('{!r} is not a Python function'.format(func))
      args, varargs, varkw = getargs(func.func_code)
      return ArgSpec(args, varargs, varkw, func.func_defaults)
function_tokens: def getargspec ( func ) : if ismethod ( func ) : func = func . im_func if not isfunction ( func ) : raise TypeError ( '{!r} is not a Python function' . format ( func ) ) args , varargs , varkw = getargs ( func . func_code ) return ArgSpec ( args , varargs , varkw , func . func_defaults )