dataform-ga4-helpers is a Dataform package providing common methods for dataform-ga4-helpers and dataform-ga4-events packages. You could also use it separate to reuse javascript helpers for GA4 raw dataset.

• Unnest event_parameters and user_properties
• Extract query_parameters from page_location
• Generate session_id and event_id
• Get first not null value from records
• Generate Select from JavaScript list of objects
• Declare GA4 source tables