For AI agents: the complete documentation index is available at /next/llms.txt, the full documentation bundle is available at /next/llms-full.txt, and this page is available as Markdown at /next/api/react/Interfaces/MainThreadObjectType.md.
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      • Interface: MainThreadObjectType<I, O extends object>

      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.

      Type Parameters

      Type Parameter
      I
      O extends object

      Properties

      downcast

      readonly downcast: (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.

      Parameters

      ParameterType
      valueunknown

      Returns

      MainThreadObjectHandle<I, O> | undefined

      type

      readonly type: string

      A globally unique and stable type key.

      Except as otherwise noted, this work is licensed under a Creative Commons Attribution 4.0 International License, and code samples are licensed under the Apache License 2.0.