parameters: (s)
return_statement: return b64decode(s, '-_')
docstring: Decode a string encoded with the standard Base64 alphabet.
  
      s is the string to decode.  The decoded string is returned.  A TypeError
      is raised if the string is incorrectly padded or if there are non-alphabet
      characters present in the string.
  
      The alphabet uses '-' instead of '+' and '_' instead of '/'.
docstring_summary: Decode a string encoded with the standard Base64 alphabet.
docstring_tokens: Decode a string encoded with the standard Base64 alphabet .
function: def urlsafe_b64decode(s):
      """Decode a string encoded with the standard Base64 alphabet.
  
      s is the string to decode.  The decoded string is returned.  A TypeError
      is raised if the string is incorrectly padded or if there are non-alphabet
      characters present in the string.
  
      The alphabet uses '-' instead of '+' and '_' instead of '/'.
      """
      return b64decode(s, '-_')
function_tokens: def urlsafe_b64decode ( s ) : return b64decode ( s , '-_' )