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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 ui_extensions(self):
 """ Provides access to UI extensions management methods. API reference: https://www.contentful.com/developers/docs/references/content-management-api/#/reference/ui-extensions :return: :class:`EnvironmentUIExtensionsProxy <contentful_management.ui_extensions_proxy.EnvironmentUIExtensionsProxy>` object. :rtype: contentful.ui_extensions_proxy.EnvironmentUIExtensionsProxy Usage: <EnvironmentUIExtensionsProxy space_id="cfexampleapi" environment_id="master"> """


        return EnvironmentUIExtensionsProxy(self._client, self.space.id, self.id)