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      MainThreadObjectType interface

      An immutable MainThreadObject type token with source-handle inspection.

      The factory function belongs to the input definition and is not exposed by the returned token. In the background runtime they compile to opaque Main Thread Function descriptors rather than bundling their implementation.

      Signature:

      export interface MainThreadObjectType<I, O extends object>

      Properties

      Property

      Modifiers

      Type

      Description

      downcast

      readonly

      (value: unknown) => MainThreadObjectHandle<I, O> | undefined

      Narrow a value to a source-runtime handle of this exact type.

      This does not create or access the realized main-thread object.

      type

      readonly

      string

      A globally unique and stable type key.