Five record types describe every change to the native view tree: create, update, insert, destroy, and set frame. The [Reconciler][pythonnative.reconciler.Reconciler] emits them; the [NativeViewRegistry][pythonnative.native_views.NativeViewRegistry] applies them.

::: pythonnative.mutations options: show_root_heading: false show_root_toc_entry: false members_order: source filters: ["!^_"]

• See where the callables stripped from these payloads go in Events.
• See how each op is applied to a concrete widget in Native views.
• Read what handlers size themselves against in Platform metrics.
• Read the diffing pass that produces these lists in Reconciliation.