Method grad

tfjs-core/src/engine.ts:509–520

(dy: Tensor)

                                       {x} as unknown as NamedTensorMap);
    const inputs = {x};
    const grad = (dy: Tensor) => ({
      x: () => {
        const dtype = 'float32';
        const gradInputs = {x: dy};
        const attrs = {dtype};

        return ENGINE.runKernel(
                   Cast, gradInputs as unknown as NamedTensorMap,
                   // tslint:disable-next-line: no-unnecessary-type-assertion
                   attrs as unknown as NamedAttrMap) as Tensor;
      }
    });
    const saved: Tensor[] = [];
    this.addTapeNode(this.state.activeScope.name, inputs, [y], grad, saved, {});
    return y;