Constant WIT_CONTENT 

pub const WIT_CONTENT: &str = "package vtx:api@3.4.1;\n\ninterface sql {\n    variant db-value {\n        text(string),\n        integer(s64),\n        real(f64),\n        null-val,\n    }\n\n    execute: func(\n        statement: string,\n        params: list<db-value>,\n    ) -> result<u64, string>;\n\n    query-json: func(\n        statement: string,\n        params: list<db-value>,\n    ) -> result<string, string>;\n}\n\ninterface stream-io {\n    resource buffer {\n        size: func() -> u64;\n\n        read: func(\n            offset: u64,\n            max-bytes: u64,\n        ) -> list<u8>;\n\n        write: func(\n            data: list<u8>,\n        ) -> u64;\n    }\n\n    open-file: func(\n        uuid: string,\n    ) -> result<buffer, string>;\n\n    create-memory-buffer: func(\n        data: list<u8>,\n    ) -> buffer;\n}\n\ninterface auth-types {\n    record user-context {\n        user-id: string,\n        username: string,\n        groups: list<string>,\n        metadata: string,\n    }\n\n    record current-user {\n        user-id: string,\n        username: string,\n        groups: list<string>,\n    }\n}\n\ninterface types {\n    use stream-io.{buffer};\n    use auth-types.{user-context};\n\n    record http-request {\n        method: string,\n        path: string,\n        query: string,\n    }\n\n    record http-response {\n        status: u16,\n        body: option<buffer>,\n    }\n\n    record manifest {\n        id: string,\n        name: string,\n        version: string,\n        description: string,\n        entrypoint: string,\n    }\n}\n\ninterface ffmpeg {\n    use stream-io.{buffer};\n\n    record transcode-params {\n        profile: string,\n        input-id: string,\n        args: list<string>,\n    }\n\n    execute: func(\n        params: transcode-params,\n    ) -> result<buffer, string>;\n}\n\ninterface events {\n    record event-context {\n        user-id: option<string>,\n        username: option<string>,\n        request-id: option<string>,\n    }\n\n    record vtx-event {\n        id: string,\n        topic: string,\n        source: string,\n        payload: string,\n        context: event-context,\n        occurred-at: u64,\n    }\n}\n\ninterface context {\n    use auth-types.{current-user};\n\n    get-current-user: func() -> option<current-user>;\n}\n\ninterface event-bus {\n    publish-event: func(\n        topic: string,\n        payload: string,\n    ) -> result<_, string>;\n}\n\nworld plugin {\n    use types.{http-request, http-response, manifest};\n    use auth-types.{user-context};\n    use events.{vtx-event};\n\n    import stream-io;\n    import sql;\n    import ffmpeg;\n    import context;\n    import event-bus;\n\n    export handle: func(\n        req: http-request,\n    ) -> http-response;\n\n    export handle-event: func(\n        event: vtx-event,\n    ) -> result<_, string>;\n\n    export get-migrations: func() -> list<string>;\n\n    export get-manifest: func() -> manifest;\n\n    export get-resources: func() -> list<string>;\n\n    export authenticate: func(\n        headers: list<tuple<string, string>>,\n    ) -> result<user-context, u16>;\n}\n";

The raw content of the WIT interface definition.