def item_versions(self, **kwargs):
if "<STR_LIT>" not in kwargs:<EOL><INDENT>kwargs["<STR_LIT>"] = None<EOL><DEDENT>kwargs["<STR_LIT>"] = "<STR_LIT>"<EOL>return self.items(**kwargs)<EOL>
Returns dict associating items keys (all no limit by default) to versions.
Accepts a since= parameter in kwargs to limit the data to those updated since since=