_QuantizationComponent.COMPONENT_ACTIVATION
        ].tensor_type
    )
    # Unlike the HISTOGRAM_PERCENTILE method, the HISTOGRAM_MSE method uses
    # num_bits because it actually quantizes and dequantizes values.
    if activation_tensor_type != _TensorType.TENSORTYPE_INT_8:
      raise ValueError(
          'Only TENSORTYPE_INT_8 is supported for HISTOGRAM_MSE calibration'