docs: static String equalsParameterType(Map<ObjectMethod, ExecutableElement> methodsToGenerate) {
      ExecutableElement equals = methodsToGenerate.get(ObjectMethod.EQUALS);
      if (equals == null) {
        return ""; // this will not be referenced because no equals method will be generated
      }
      TypeMirror parameterType = equals.getParameters().get(0).asType();
      return TypeEncoder.encodeWithAnnotations(parameterType);
    }