# How to combine manifest_maintenance.yaml (left) and manifest_sensors.yaml (right).
op: merge_manifests

# 1. The map of names: what each side's words become in the combined manifest.
canonical_maps:
    left: {vertices: {Asset: Machine}}
    right: {properties: {Device: {serial: serial_number}}}

# 2. These two types are one, and this is how records from both sides find
#    each other: a normalized serial number first, else each record's own key.
vertex_equivalences:
-   left: Asset
    right: Device
    identity:
    -   name: match_key
        sources:
            assets: {input: [serial_number]}
            devices: {input: [serial]}
    -   local_key:
            assets: {field: asset_id, tag: maintenance}
            devices: {field: device_id, tag: sensors}