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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 to_json(self):
 """ Returns the JSON Representation of the content type field. """


        result = {
            'name': self.name,
            'id': self._real_id(),
            'type': self.type,
            'localized': self.localized,
            'omitted': self.omitted,
            'required': self.required,
            'disabled': self.disabled,
            'validations': [v.to_json() for v in self.validations]
        }

        if self.type == 'Array':
            result['items'] = self.items

        if self.type == 'Link':
            result['linkType'] = self.link_type

        return result