//! https://docs.gitlab.com/ce/api/projects.html#list-branches
//!
//! # List branches
//!
//! Lists all branches of a project.
//!
//! ```text
//! GET /projects/ID/repository/branches
//! ```
//!
//! Parameters:
//!
//! | Attribute | Type | Required | Description |
//! | --------- | ---- | -------- | ----------- |
//! | `id` | integer/string | yes | The ID of the project or `NAMESPACE/PROJECT_NAME` |