isIssueContext
Description
Verifies if the script is running in an Contexts.
Return Type
Boolean
A "true" return value means that the script is running in an issue context and that the standard variables and custom fields are available for use.
Example
if(isIssueContext()){
return usersInGroups({"jira-users"}) - reporter;
} else {
return usersInGroups({"jira-users"}) - currentUser();
}