import{createMachine,spawnChild,setup,assign}from'xstate';constchildMachine=createMachine({});setup({}).createMachine({entry:spawnChild(childMachine,{id:'child',// Type 'string' is not assignable to type 'undefined'.(2322)}),});createMachine({entry:spawnChild(childMachine,{id:'child',// this ok}),});setup({types:{context:{}as{childMachineRef?:any},},}).createMachine({entry:assign({childMachineRef:({ spawn})=>spawn(childMachine,{id:'child'}),// No overload matches this call.// Overload 1 of 2, '(logic: never, ...[options]: never): ActorRefFromLogic<never>', gave the following error.//   Argument of type 'StateMachine<MachineContext, AnyEventObject, Record<string, AnyActorRef>, ProvidedActor, ParameterizedObject, ... 8 more ..., any>' is not assignable to parameter of type 'never'.// Overload 2 of 2, '(src: StateMachine<MachineContext, AnyEventObject, Record<string, AnyActorRef>, ProvidedActor, ParameterizedObject, ... 8 more ..., any>, options?: ({ ...; } & {}) | undefined): ActorRefFromLogic<...>', gave the following error.//   Type 'string' is not assignable to type 'undefined'.(2769)}),});createMachine({entry:assign({childMachineRef:({ spawn})=>spawn(childMachine,{id:'child'}),// ok}),});

(alias)spawnChild<MachineContext,AnyEventObject,undefined,AnyEventObject,never>(src:AnyActorLogic,options?:(SpawnActionOptions<MachineContext,AnyEventObject,AnyEventObject,ProvidedActor>&{id?:never;})|undefined):ActionFunction<MachineContext,AnyEventObject,AnyEventObject,undefined,never,never,never,never,never>importspawnChild