Questions which can be asked during the checkout procedure. These could be questions such as pick-up / drop-off locations or anything else.

Field	Description
id	A UUID that uniquely identifies this question.
label	The question label to ask.
input_type	The type of field that should be used to input data. Possible are: date time datetime email number tel url text textarea select These map directly to HTML5 input types.
optional	Whether this question is option or required.
options	An array of options to choose from, only if the `input_type` `is` select.
weight	An integer defining in what order this question should be displayed.