code: public MapWithProtoValuesFluentAssertion<M> usingFloatToleranceForFieldsForValues(
        float tolerance, int firstFieldNumber, int... rest) {
      return usingConfig(
          config.usingFloatToleranceForFields(tolerance, asList(firstFieldNumber, rest)));
    }
docs: Compares float fields with these explicitly specified top-level field numbers using the
  provided absolute tolerance.
  
  @param tolerance A finite, non-negative tolerance.