parameters: (name)
return_statement: return name[-2:].isalpha() and name[-2:].isupper()
docstring: Return True if name is an API extension name (ends with an upper-case
      author ID).
  
      This assumes that author IDs are at least two characters.
docstring_summary: Return True if name is an API extension name (ends with an upper-case
      author ID).
docstring_tokens: Return True if name is an API extension name ( ends with an upper - case author ID ) .
function: def isextension(name):
      """Return True if name is an API extension name (ends with an upper-case
      author ID).
  
      This assumes that author IDs are at least two characters."""
      return name[-2:].isalpha() and name[-2:].isupper()
function_tokens: def isextension ( name ) : return name [ - 2 : ] . isalpha ( ) and name [ - 2 : ] . isupper ( )