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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def has_field(cls, field_name):
 """ Check if the current class has a field with the name "field_name" Add management of dynamic fields, to return True if the name matches an existing dynamic field without existing copy for this name. """

        if super(ModelWithDynamicFieldMixin, cls).has_field(field_name):
            return True

        try:
            cls._get_dynamic_field_for(field_name)
        except ValueError:
            return False
        else:
            return True