@purchase_order_id.setter<EOL><INDENT>def purchase_order_id(self, purchase_order_id):<DEDENT>
self._purchase_order_id = purchase_order_id<EOL>
Sets the purchase_order_id of this InventoryAdjustment.
The read-only Square ID of the purchase order that caused the adjustment. Only relevant for state transitions from the Square for Retail app.

:param purchase_order_id: The purchase_order_id of this InventoryAdjustment.
:type: str