Build a changeset for creating a resource with Ash.

Returns {:ok, changeset, tenant_value} where tenant_value may be nil if the resource doesn't use attribute-based multitenancy.

Execute a custom creation function.

Find a referenced resource in the created resources map.

Get a create action for a resource, with fallback to any create action.

Infer the domain for a resource module.

Normalize prototype refs and merge overrides from multiple sources.

Supports:

• Per-ref tuple: {Module, :ref, %{attr => value}}
• Top-level opts: overrides: %{{Module, :ref} => %{...}}
• For a single prototype, a bare map is allowed: overrides: %{...}

Get the related module for a relationship attribute.

Check if an attribute name corresponds to a relationship.

Resolve a single attribute value, handling relationship references.

For database mode: Resolves atom references to IDs from created resources. For struct mode: Keep atom references as-is (handled by caller).

Resolve all attributes, handling relationship references.

Track telemetry for a created resource.