// NEXT ID: 7
message UnitWiseQuantizationSpec {
  // Quantization unit granularity.
  // NEXT ID: 4
  message QuantizationUnit {
    // Type of the op, ex: Conv2D, MatMul, Einsum... The node_name field can
    // be omitted if it is intended to match all nodes with this type.
    string op_type = 1;
    // Name of the node. This field accepts re2 regex format. If the node name