let summary = "Returns a diagonal tensor with a given diagonal values.";

  let description = [{
Given a `diagonal`, this operation returns a tensor with the `diagonal` and
everything else padded with zeros. The diagonal is computed as follows:

Assume `diagonal` has dimensions [D1,..., Dk], then the output is a tensor of

A743          ; valid                                  # 5.1  LATIN SMALL LETTER K WITH DIAGONAL STROKE
A744          ; mapped                 ; A745          # 5.1  LATIN CAPITAL LETTER K WITH STROKE AND DIAGONAL STROKE
A745          ; valid                                  # 5.1  LATIN SMALL LETTER K WITH STROKE AND DIAGONAL STROKE

*   `tf.lite`:

    *   Add 16-bit float type support for built-in op `fill`.
    *   Transpose now supports 6D tensors.
    *   Float LSTM now supports diagonal recurrent tensors: https://arxiv.org/abs/1903.08023

*   `tf.experimental.dtensor`:

    *   Coordination service now works with `dtensor.initialize_accelerator_system`, and enabled by default.