Type: Function
Function: IS_NOT_NULL
Syntax: IS_NOT_NULL(value)
Description: Return true if the provided argument is present (not null).
Sample usage:
IS_NOT_NULL(assigned_at)returnstrueif theassigned_atitem field value is notnull(the issue or pull request has been assigned to someone).IS_NOT_NULL(merged_at)returnstrueif themerged_atfield value is notnull(the record is a pull request that has been merged).
