// engine uses re2, which accepts a subset of PCRE. See
  // https://github.com/google/re2/wiki/Syntax for details.
  string regex = 1;
}

// Matcher specification for identifying quantizable units.
message MatcherSpec {
  // Matches lifted functions by their names.
  FunctionNameMatcherSpec function_name = 1;
}

// Specifies how to quantize matched quantizable units.
message Method {
  oneof method {

        # function name starts with "composite_dot_general".
        specs=qc.QuantizationSpecs(
            specs=[
                qc.QuantizationSpec(
                    matcher=qc.MatcherSpec(
                        function_name=qc.FunctionNameMatcherSpec(
                            regex='composite_dot_general.*'
                        )
                    ),