@opened_at.setter<EOL><INDENT>def opened_at(self, opened_at):<DEDENT>
self._opened_at = opened_at<EOL>
Sets the opened_at of this V1CashDrawerShift.
The time when the shift began, in ISO 8601 format.

:param opened_at: The opened_at of this V1CashDrawerShift.
:type: str