Bixby Developer Center

Restrict the maximum cardinality of the related input based on a boolean expression.

If the expression tested by single-value evaluates to true, the prompt will behave as if max (One) was specified for the related input. If it evaluates to false, the prompt will use the value that the related input specifies for max.

Example

...
  prompt (items) {
    single-value (size(basket) == 1)
    candidates (matches)
  }
...