parameters: (s)
return_statement: return s.swapcase()
docstring: swapcase(s) -> string
  
      Return a copy of the string s with upper case characters
      converted to lowercase and vice versa.
docstring_summary: swapcase(s) -> string
docstring_tokens: swapcase ( s ) - > string
function: def swapcase(s):
      """swapcase(s) -> string
  
      Return a copy of the string s with upper case characters
      converted to lowercase and vice versa.
  
      """
      return s.swapcase()
function_tokens: def swapcase ( s ) : return s . swapcase ( )