parameters: (typemap, func, avail_vars)
docstring: find variable in typemap which represents the function func.
docstring_summary: find variable in typemap which represents the function func.
docstring_tokens: find variable in typemap which represents the function func .
function: def _find_func_var(typemap, func, avail_vars):
      """find variable in typemap which represents the function func.
      """
      for v in avail_vars:
          t = typemap[v]
          # Function types store actual functions in typing_key.
          if isinstance(t, Function) and t.typing_key == func:
              return v
      raise RuntimeError("ufunc call variable not found")
function_tokens: def _find_func_var ( typemap , func , avail_vars ) : for v in avail_vars : t = typemap [ v ] # Function types store actual functions in typing_key. if isinstance ( t , Function ) and t . typing_key == func : return v raise RuntimeError ( "ufunc call variable not found" )