PartialAssigner type

Signature:

export type PartialAssigner<TContext extends MachineContext, TExpressionEvent extends EventObject, TParams extends ParameterizedObject['params'] | undefined, TEvent extends EventObject, TActor extends ProvidedActor, TKey extends keyof TContext> = (args: AssignArgs<TContext, TExpressionEvent, TEvent, TActor>, params: TParams) => TContext[TKey];

References: MachineContext, EventObject, ParameterizedObject, ProvidedActor, AssignArgs