import type { ContextMethodKeys, TaskHostCtor, TaskInput, TaskOutput, WorkflowHostCtor, WorkflowInput, WorkflowOutput } from "./shared.js";
/**
 * Reference to a task within a {@link TaskHost}
 */
export interface TaskRef<C extends TaskHostCtor<any>> {
    readonly host: C;
    readonly method: ContextMethodKeys<InstanceType<C>>;
}
/**
 * Reference to a workflow as a {@link WorkflowHost}
 */
export interface WorkflowRef<C extends WorkflowHostCtor<any>> {
    readonly host: C;
}
/**
 * Represents any callable reference.
 * Note that externally only TaskRef and WorkflowRef are supported.
 */
export type AnyCallableRef = TaskRef<any> | WorkflowRef<any>;
/**
 * Extracts the input type of the callable reference.
 */
export type InputOfRef<R extends AnyCallableRef> = R extends TaskRef<infer C> ? TaskInput<C> : R extends WorkflowRef<infer C> ? WorkflowInput<C> : never;
/**
 * Extracts the output type of the callable reference.
 */
export type OutputOfRef<R extends AnyCallableRef> = R extends TaskRef<infer C> ? TaskOutput<C> : R extends WorkflowRef<infer C> ? WorkflowOutput<C> : never;