# Library Agent API . shelves . books

## Instance Methods

Borrow a book from the library. Returns the book if it is borrowed

Gets a book. Returns NOT_FOUND if the book does not exist.

Lists books in a shelf. The order is unspecified but deterministic. Newly

Retrieves the next page of results.

Return a book to the library. Returns the book if it is returned to the

### Method Details

`borrow(name, x__xgafv=None)`

    Borrow a book from the library. Returns the book if it is borrowed
    successfully. Returns NOT_FOUND if the book does not exist in the library.
    Returns quota exceeded error if the amount of books borrowed exceeds
    allocation quota in any dimensions.

    Args:
      name: string, Required. The name of the book to borrow. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # A single book in the library.
        "title": "A String", # The title of the book.
        "read": True or False, # Value indicating whether the book has been read.
        "name": "A String", # The resource name of the book.
            # Book names have the form `shelves/{shelf_id}/books/{book_id}`.
            # The name is ignored when creating a book.
        "author": "A String", # The name of the book author.
      }

`get(name, x__xgafv=None)`

    Gets a book. Returns NOT_FOUND if the book does not exist.

    Args:
      name: string, Required. The name of the book to retrieve. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # A single book in the library.
        "title": "A String", # The title of the book.
        "read": True or False, # Value indicating whether the book has been read.
        "name": "A String", # The resource name of the book.
            # Book names have the form `shelves/{shelf_id}/books/{book_id}`.
            # The name is ignored when creating a book.
        "author": "A String", # The name of the book author.
      }

`list(parent, pageToken=None, pageSize=None, x__xgafv=None)`

    Lists books in a shelf. The order is unspecified but deterministic. Newly
    created books will not necessarily be added to the end of this list.
    Returns NOT_FOUND if the shelf does not exist.

    Args:
      parent: string, Required. The name of the shelf whose books we'd like to list. (required)
      pageToken: string, A token identifying a page of results the server should return.
    Typically, this is the value of
    ListBooksResponse.next_page_token.
    returned from the previous call to `ListBooks` method.
      pageSize: integer, Requested page size. Server may return fewer books than requested.
    If unspecified, server will pick an appropriate default.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Response message for LibraryAgent.ListBooks.
        "nextPageToken": "A String", # A token to retrieve next page of results.
            # Pass this value in the
            # ListBooksRequest.page_token
            # field in the subsequent call to `ListBooks` method to retrieve the next
            # page of results.
        "books": [ # The list of books.
          { # A single book in the library.
            "title": "A String", # The title of the book.
            "read": True or False, # Value indicating whether the book has been read.
            "name": "A String", # The resource name of the book.
                # Book names have the form `shelves/{shelf_id}/books/{book_id}`.
                # The name is ignored when creating a book.
            "author": "A String", # The name of the book author.
          },
        ],
      }

`list_next(previous_request, previous_response)`

    Retrieves the next page of results.

    Args:
      previous_request: The request for the previous page. (required)
      previous_response: The response from the request for the previous page. (required)

    Returns:
      A request object that you can call 'execute()' on to request the next
      page. Returns None if there are no more items in the collection.

`return_(name, x__xgafv=None)`

    Return a book to the library. Returns the book if it is returned to the
    library successfully.
    Returns error if the book does not belong to the library
    or the users didn't borrow before.

    Args:
      name: string, Required. The name of the book to return. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # A single book in the library.
        "title": "A String", # The title of the book.
        "read": True or False, # Value indicating whether the book has been read.
        "name": "A String", # The resource name of the book.
            # Book names have the form `shelves/{shelf_id}/books/{book_id}`.
            # The name is ignored when creating a book.
        "author": "A String", # The name of the book author.
      }