parameters: (filename, mode="rb", compresslevel=9)
return_statement: return GzipFile(filename, mode, compresslevel)
docstring: Shorthand for GzipFile(filename, mode, compresslevel).
  
      The filename argument is required; mode defaults to 'rb'
      and compresslevel defaults to 9.
docstring_summary: Shorthand for GzipFile(filename, mode, compresslevel).
docstring_tokens: Shorthand for GzipFile ( filename mode compresslevel ) .
function: def open(filename, mode="rb", compresslevel=9):
      """Shorthand for GzipFile(filename, mode, compresslevel).
  
      The filename argument is required; mode defaults to 'rb'
      and compresslevel defaults to 9.
  
      """
      return GzipFile(filename, mode, compresslevel)
function_tokens: def open ( filename , mode = "rb" , compresslevel = 9 ) : return GzipFile ( filename , mode , compresslevel )