parameters: (s)
return_statement: return s.lower()
docstring: lower(s) -> string
  
      Return a copy of the string s converted to lowercase.
docstring_summary: lower(s) -> string
docstring_tokens: lower ( s ) - > string
function: def lower(s):
      """lower(s) -> string
  
      Return a copy of the string s converted to lowercase.
  
      """
      return s.lower()
function_tokens: def lower ( s ) : return s . lower ( )