Rejects requests to create a group.
Note: This function is only relevant if admin approval is required for creating a group, or if the function's suppressAuth option is set to true.
The rejectCreateRequests() function returns a Promise that resolves when the site member's request to create a group is rejected.
Only site admins can reject requests to create a group.
Note: If the suppressAuth option is set to true, all permissions are overwritten, and all site members can reject requests to create a group.
Rejection data.
Authorization options.