parameters: (self)
docstring: This is used to designate the last part of a multipart message.
  
          It should always be used when writing multipart messages.
docstring_summary: This is used to designate the last part of a multipart message.
docstring_tokens: This is used to designate the last part of a multipart message .
function: def lastpart(self):
          """This is used to designate the last part of a multipart message.
  
          It should always be used when writing multipart messages.
  
          """
          self._fp.write("\n--" + self._boundary + "--\n")
function_tokens: def lastpart ( self ) : self . _fp . write ( "\n--" + self . _boundary + "--\n" )