Absence workflow approval notifications

Team, we want to customize and hide attachments from approval workflow notification for absence approval. We want to customize the seeded template to hide the attachment based on certain conditions for some leave types. We looked at AbsenceApprovalNotificationReport >> Workflow Notification Subtemplate >> FusionHistoryRegion >> ORA_BIP_TOKEN_HISTORY_REGION_BIP_TOKEN but did not find much information on how attachments are fetched in the template. Can you provide some information on how this template can be customized to hide the attachments?