Custom Module missing SDK function fetchRelatedRecords(...) in a Client Script

Custom Module missing SDK function fetchRelatedRecords(...) in a Client Script

Good day,

We have added a new module with a Multi-Lookup relation to Contacts.  When we tried to use the fetchRelatedRecords(id, related_list_api_name) function to get Related Records it is missing for our new custom module.

https://js.zohocdn.com/crm/5124797/documentation/DotSDK/Modules.html

How can we ensure this function is available for our custom module in a Client Script?

Thank you,
Colby SIlver