/**
 * @license
 * Copyright 2018 Google LLC
 *
 * Use of this source code is governed by an MIT-style
 * license that can be found in the LICENSE file or at
 * https://opensource.org/licenses/MIT.
 * =============================================================================
 */

import {stringLiteralArray} from './utils';

/**
 * List of all known loss names.
 */
export const lossOptions = stringLiteralArray([
  'mean_squared_error', 'mean_absolute_error', 'mean_absolute_percentage_error',
  'mean_squared_logarithmic_error', 'squared_hinge', 'hinge',
  'categorical_hinge', 'logcosh', 'categorical_crossentropy',
  'sparse_categorical_crossentropy', 'kullback_leibler_divergence', 'poisson',
  'cosine_proximity'
]);

/**
 * A type representing the strings that are valid loss names.
 */
export type LossIdentifier = typeof lossOptions[number];