text: /**
   * @license
   * Copyright 2020 Google LLC. All Rights Reserved.
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   * =============================================================================
   */
  
  // TODO update import path once op is modularized.
  import {softplus} from '../../ops/ops';
  import {Tensor} from '../../tensor';
  import {Rank} from '../../types';
  
  declare module '../../tensor' {
    interface Tensor<R extends Rank = Rank> {
      softplus<T extends Tensor>(this: T): T;
    }
  }
  
  Tensor.prototype.softplus = function<T extends Tensor>(this: T): T {
    this.throwIfDisposed();
    return softplus(this);
  };
  