def METHOD_NAME(view, schema=None):
    schema = schema or view.schema
    return [
        item for item in dir(view) if callable(getattr(view, item)) and (
            item in view.http_method_names
            or item in schema.method_mapping.values()
            or item == 'list'
            or hasattr(getattr(view, item), 'mapping')
        )
    ]