---
title: 'Attribute'
---

Representation of a definition of an attribute. Use the [attr](/versions/8.2.1/rules/lib/toplevel/attr) module to create an Attribute. They are only for use with a [rule](/versions/8.2.1/rules/lib/globals/bzl#rule) or an [aspect](/versions/8.2.1/rules/lib/globals/bzl#aspect).