/*
 * "These lines of code can be added to the Conditions box in a workflow post function on Jira Cloud in order to specify a condition that must return true before the code for a script post function to be run
 * All right, title and interest in this code snippet shall remain the exclusive intellectual property of Adaptavist Group Ltd and its affiliates. Customers with a valid ScriptRunner 
 * license shall be granted a  non-exclusive, non-transferable, freely revocable right to use this code snippet only within their own instance of Atlassian products. This licensing notice cannot be removed
 * or amended and must be included in any circumstances where the code snippet is shared by You or a third party." 
 */

// Validate that a Checkbox field has a certain option selected
((List)issue.fields.customfield_10063)?.collect { it.value }?.any { it == 'Checkbox1' } // Here you should replace customfield_10063 with the ID of your checkbox custom field and Checkbox1 with the name of the option that you want to match.