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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def fill(self, config, section):
 """Fill data from a given configuration section. Args: config (configparser):
 the configuration file section (str):
 the section to use """

        if config.has_section(section):
            default_url = self.DEFAULT_REPOSITORIES.get(self.name, '')
            self.url = RepositoryURL(config_get(config, section, 'repository', default_url))
            self.username = config_get(config, section, 'username', '')
            self.password = config_get(config, section, 'password', '')