API - Get custom variable values within the date range

Hi All

I am trying to understand how to get the list of values of custom variables across all visits by a label within a date range.
Tried building the queue based on this documentation: Reporting API Reference: API Reference - Matomo Analytics (formerly Piwik Analytics) - Developer Docs - v3 but unsuccessfully.

I am able to get anything (count, bounces, actions, etc…) but not the actual Custom Variable Values

All I am looking for is an export in any format that would produce a list of values custom variables.

Custom Var X Name, Custom Var X Value
Custom Var X Name, Custom Var X Value
Custom Var X Name, Custom Var X Value

Help?