Options are control-specific; the registry stores the constructor, not a
uniform call shape. options?: never is the construct signature a
shipped control satisfies (every control's options argument is
optional), so register("Button", Button) type-checks without a cast.
A host that looks one up constructs it with the options that control
documents.
A widget constructor stored under a name.
Options are control-specific; the registry stores the constructor, not a uniform call shape.
options?: neveris the construct signature a shipped control satisfies (every control's options argument is optional), soregister("Button", Button)type-checks without a cast. A host that looks one up constructs it with the options that control documents.