It appears that at some point, the Wyze API changed how properties are defined on objects returned in get_object_list. Rather than referring to the open_close_state as P1301, it's instead just referred to in JSON as open_close_state. I expect this is also true for all other props, but haven't confirmed this.
My pull request #191 (replacing usage of strtobool) also has this single prop switched out, to make my particular use case work. I encourage other folks using this API to update their PropDefs as needed, until it's done for all devices.