## Instruction

### General

- **Usage**: Run the tool with a specific command and relevant arguments.
- **Command**: `ope <function> [arguments]`

### `new_project` 

- **Description**: Creates a new OPE project from templates.
- **Usage**: `ope new_project <project_name> [repo_url]`
- **Arguments**:
  - `project_name`: Name of the new project.
  - `repo_url` (optional): URL of the Git repository to associate with the project.

### `new_book`

- **Description**: Creates a new book within the project.
- **Usage**: `ope new_book <book_name>`
- **Arguments**:
  - `book_name`: Name of the new book.

### `new_container`

- **Description**: Adds source for building a new container for the project.
- **Usage**: `ope new_container <container_name>`
- **Arguments**:
  - `container_name`: Name of the new container.

### `new_course`

- **Description**: Creates a new course with a standard set of books and a container.
- **Usage**: `ope new_course <course_name> [repo_url]`
- **Arguments**:
  - `course_name`: Name of the new course.
  - `repo_url` (optional): URL of the Git repository for the course.

### `update`

- **Description**: Updates and rebases changes from the OPE framework.
- **Usage**: `ope update`
- No arguments required.