Gets or sets label for the value to display in the UI. If not supplied, the Value is used as the label (if Value is not supplied, Label is the empty string). If the Value expression returns an array, the Label expression must return an array with the same number of items. If the Value expression does not return an array, the Label expression must not return an array.

Gets or sets possible value for the parameter. For Boolean parameters, use “true” and “false”. For DateTime parameters, use ISO 8601. For Float parameters, use “.” as the optional decimal separator. If the Value expression returns an array, each item in the array is treated as a single value. The items in the array must not be arrays.