What toA2UI accepts: the strict panel type, or the loose payload.interface exactly as onRender delivers it (already validated and clamped server-side, so the structural cast inside is safe).
toA2UI
payload.interface
onRender
What
toA2UIaccepts: the strict panel type, or the loosepayload.interfaceexactly asonRenderdelivers it (already validated and clamped server-side, so the structural cast inside is safe).