<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def snapshots(self):
 """ Provides access to snapshot management methods for the given entry. API reference: https://www.contentful.com/developers/docs/references/content-management-api/#/reference/snapshots :return: :class:`EntrySnapshotsProxy <contentful_management.entry_snapshots_proxy.EntrySnapshotsProxy>` object. :rtype: contentful.entry_snapshots_proxy.EntrySnapshotsProxy Usage: <EntrySnapshotsProxy space_id="cfexampleapi" environment_id="master" entry_id="nyancat"> """

        return EntrySnapshotsProxy(self._client, self.sys['space'].id, self._environment_id, self.sys['id'])