call(inputs) {
    if (this.gpu) {
      this._callGPU(inputs)
    } else {
      const valid = this._validateInputs(inputs)
      if (!valid) {
        this.throwError('Invalid inputs to call method.')
      }
      this._callCPU(inputs)
    }
    return this.output
  }
Layer computational logic

@param {Tensor[]} inputs
@returns {Tensor}