@property<EOL><INDENT>def transaction_id(self):<DEDENT>
return self._transaction_id<EOL>
Gets the transaction_id of this InventoryAdjustment.
The read-only Square ID of the [Transaction][#type-transaction] that caused the adjustment. Only relevant for payment-related state transitions.

:return: The transaction_id of this InventoryAdjustment.
:rtype: str