init(_:)
Narrows an untyped Spec to an attribute spec.
Declaration
init?(_ spec: USDLayer.Spec)Parameters
- spec:
The spec to narrow.
Return Value
An attribute spec, or nil if spec is not an attribute spec.
Narrows an untyped Spec to an attribute spec.
init?(_ spec: USDLayer.Spec)The spec to narrow.
An attribute spec, or nil if spec is not an attribute spec.