def get_option_def(self, opt):
assert self.options<EOL>for option in self.options:<EOL><INDENT>if option[<NUM_LIT:0>] == opt:<EOL><INDENT>return option[<NUM_LIT:1>]<EOL><DEDENT><DEDENT>raise optparse.OptionError(<EOL>"<STR_LIT>" % (opt, self.name), opt<EOL>)<EOL>
return the dictionary defining an option given its name