Given a specific platform (under the Capirca conventions),
    return the generator class.
    The generator class is identified looking under the <platform> module
    for a class inheriting the `ACLGenerator` class.

def _import_platform_generator(platform):
    '''
    Given a specific platform (under the Capirca conventions),
    return the generator class.
    The generator class is identified looking under the <platform> module
    for a class inheriting the `ACLGenerator` class.
    '''
    log.debug('Using platform: %s', platform)
    for mod_name, mod_obj in inspect.getmembers(capirca.aclgen):
        if mod_name == platform and inspect.ismodule(mod_obj):
            for plat_obj_name, plat_obj in inspect.getmembers(mod_obj):  # pylint: disable=unused-variable
                if inspect.isclass(plat_obj) and issubclass(plat_obj, capirca.lib.aclgenerator.ACLGenerator):
                    log.debug('Identified Capirca class %s for %s', plat_obj, platform)
                    return plat_obj
    log.error('Unable to identify any Capirca plaform class for %s', platform)