The block objectThe block object allows you to block out timeslots so they cannot be booked.Attributes *id** integer The unique id for the block object. *item** object The item for the block, an instance of the item object. *blockdate** _date The date of the block. *blocktime** _time The time of the block. *blockend** _time The end time of the block. *duration** positive integer The duration of the block. *totalquantity** _positive integer The total quantity of spaces for the block. *message** string The message on the block.