IsWeightPerChannelQuantized(quantization_method));
  }

  // Returns true if the quantization method indicates per-channel quantization
  // for convolution weights. This method specifically matches a quantization
  // dimension of 3 for the input index 1 or unspecified quantization dimension
  // for the input index 1.
  bool IsWeightPerChannelQuantized(const Method& quantization_method) const {