import type { DynamicModule, ForwardReference, ModuleMetadata, Provider, Type } from '@nestjs/common';
export interface RunnableConfigLike {
    tags?: string[];
    metadata?: Record<string, unknown>;
    configurable?: Record<string, unknown>;
    [key: string]: unknown;
}
export interface RunnableStreamOptionsLike {
    [key: string]: unknown;
}
export type RunnableEdge = readonly [from: string, to: string];
export type RunnableKind = 'runnable' | 'graph' | 'chain' | 'tool' | 'model' | 'retriever';
export interface LangChainModuleOptions {
    global?: boolean;
    defaultConfig?: RunnableConfigLike;
}
export interface LangChainModuleAsyncOptions extends Pick<ModuleMetadata, 'imports'> {
    global?: boolean;
    inject?: Array<string | symbol | Type<unknown>>;
    useFactory: (...args: unknown[]) => Promise<LangChainModuleOptions> | LangChainModuleOptions;
    extraProviders?: Provider[];
}
export interface RunnableLike<TInput = unknown, TOutput = unknown> {
    invoke(input: TInput, config?: RunnableConfigLike): Promise<TOutput> | TOutput;
    stream?(input: TInput, config?: RunnableConfigLike): AsyncIterable<unknown> | Promise<AsyncIterable<unknown>>;
    streamEvents?(input: TInput, config?: RunnableConfigLike, options?: RunnableStreamOptionsLike): AsyncIterable<unknown> | Promise<AsyncIterable<unknown>>;
}
export interface RegisteredRunnable {
    name: string;
    kind: RunnableKind;
    runnable: RunnableLike;
    nodes: readonly string[];
    edges: readonly RunnableEdge[];
    tags: readonly string[];
    metadata: Record<string, unknown>;
}
export type RegisteredGraph = RegisteredRunnable;
export type NestImport = Type<unknown> | DynamicModule | Promise<DynamicModule> | ForwardReference;