List attachments
documentedList attachments (with optional filters such as entityId/entityType).
GET /attachmentAttachmentno implementation yet0 runsInput
entity_type*
Attachment entity type (entityType constant)
e.g. 3 for Job, 12 for Attachment
entity_id*
Attachment entity id
ID of the related entity (e.g., 41)
Calls ServiceTrade as you (your API key is your account); keychains.dev holds the credentials.