Convert a DAML trigger type tag to OCF ConversionTriggerType enum value.
Used by WarrantIssuance and ConvertibleIssuance converters to map DAML variant tags
to the standardized OCF enum values.
Parameters
tag: string
The DAML trigger type tag (e.g., 'OcfTriggerTypeTypeAutomaticOnDate')
Convert a DAML trigger type tag to OCF ConversionTriggerType enum value. Used by WarrantIssuance and ConvertibleIssuance converters to map DAML variant tags to the standardized OCF enum values.