<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _generate_custom_annotation_instance(self, ns, annotation):
 """ Generates code to construct an instance of an annotation type object with parameters from the specified annotation. """

        annotation_class = class_name_for_annotation_type(annotation.annotation_type, ns)
        return generate_func_call(
            annotation_class,
            kwargs=((fmt_var(k, True), self._generate_python_value(ns, v))
                    for k, v in annotation.kwargs.items())
        )