def make_simple():
authfile = config.get('<STR_LIT>', '<STR_LIT>')<EOL>if not authfile:<EOL><INDENT>raise ConfigError('<STR_LIT>')<EOL><DEDENT>sa = SimpleAuthenticator()<EOL>sa.from_configfile(authfile)<EOL>return sa<EOL>
Create a L{SimpleAuthenticator} instance using values read from coilmq configuration.

@return: The configured L{SimpleAuthenticator}
@rtype: L{SimpleAuthenticator}
@raise ConfigError: If there is a configuration error.