import { AnyVariables, Client, DocumentInput, OperationContext, OperationResult, gql as urqlGql, OperationResultSource } from 'urql';
import { CustomClientOptions, RequestConfig } from "./types";
export declare const gql: typeof urqlGql;
export declare const urqlInstances: Record<string, {
    client: Client;
    config: CustomClientOptions;
}>;
/**
*
* Ko自定义的一些headers
*/
export declare const KoHeaders: {
    /**
     * 自动轮询请求头,告诉日志不重复收集
     */
    readonly autoLoop: {
        readonly "Request-Polling": "true";
    };
    /**
     * 请求后端时不缓存
     */
    readonly noCache: {
        readonly "Cache-Control": "no-cache";
    };
};
/**
 * 根据配置处理实例的创建
 * 参考 @ice/plugin-request 模式：模块加载时已有 fallback，这里负责替换为真实配置
 * @param reqConf
 */
export declare function createUrqlInstance(reqConf: RequestConfig): void;
/**
 * 获取client
 * @returns
 */
export declare function getInstance(instanceName?: string): {
    client: Client;
    config: CustomClientOptions;
};
/**
 * query请求
 * @param query
 * @param variables
 * @param context
 * @returns
 */
export declare function query<Data = any, Variables extends AnyVariables = AnyVariables>(query: DocumentInput<Data, Variables>, variables: Variables, context?: Partial<OperationContext> & {
    instanceName?: string;
}): Promise<OperationResult<Data, Variables>>;
/**
 * paging请求
 * @param query
 * @param variables
 * @param current
 * @param context
 * @returns
 */
export declare function paging<Data = any, Variables extends AnyVariables = AnyVariables>(query: DocumentInput<Data, Variables>, variables: Variables, current: number, context?: Partial<OperationContext> & {
    instanceName?: string;
}): Promise<OperationResult<Data, Variables>>;
/**
 * mutation请求
 * @param query
 * @param variables
 * @param context
 * @returns
 */
export declare function mutation<Data = any, Variables extends AnyVariables = AnyVariables>(query: DocumentInput<Data, Variables>, variables: Variables, context?: Partial<OperationContext> & {
    instanceName?: string;
}): Promise<OperationResult<Data, Variables>>;
/**
 * subscription请求
 * @param query
 * @param variables
 * @param context
 * @returns
 */
export declare function subscription<Data = any, Variables extends AnyVariables = AnyVariables>(query: DocumentInput<Data, Variables>, variables: Variables, context?: Partial<OperationContext> & {
    instanceName?: string;
}): OperationResultSource<OperationResult<Data, Variables>>;