import { OpenApi } from "./OpenApi";
import { OpenApiV3 } from "./OpenApiV3";
import { OpenApiV3_1 } from "./OpenApiV3_1";
import { SwaggerV2 } from "./SwaggerV2";
import { IHttpConnection } from "./structures/IHttpConnection";
import { IHttpLlmApplication } from "./structures/IHttpLlmApplication";
import { IHttpLlmFunction } from "./structures/IHttpLlmFunction";
import { IHttpResponse } from "./structures/IHttpResponse";
import { ILlmFunction } from "./structures/ILlmFunction";
/**
 * LLM function calling application composer from OpenAPI document.
 *
 * `HttpLlm` is a module for composing LLM (Large Language Model) function
 * calling application from the {@link OpenApi.IDocument OpenAPI document}, and
 * also for LLM function call execution and parameter merging.
 *
 * At first, you can construct the LLM function calling application by the
 * {@link HttpLlm.application HttpLlm.application()} function. And then the LLM
 * has selected a {@link IHttpLlmFunction function} to call and composes its
 * arguments, you can execute the function by
 * {@link HttpLlm.execute HttpLlm.execute()} or
 * {@link HttpLlm.propagate HttpLlm.propagate()}.
 *
 * By the way, if you have configured the
 * {@link IHttpLlmApplication.IConfig.separate} option to separate the parameters
 * into human and LLM sides, you can merge these human and LLM sides' parameters
 * into one through {@link HttpLlm.mergeParameters HttpLlm.mergeParameters()}
 * before the actual LLM function call execution.
 *
 * @author Jeongho Nam - https://github.com/samchon
 */
export declare namespace HttpLlm {
    /** Properties for the LLM function calling application composer. */
    interface IApplicationProps {
        /** OpenAPI document to convert. */
        document: OpenApi.IDocument | SwaggerV2.IDocument | OpenApiV3.IDocument | OpenApiV3_1.IDocument;
        /** Configuration for the LLM function calling schema conversion. */
        config?: Partial<IHttpLlmApplication.IConfig>;
    }
    /**
     * Convert OpenAPI document to LLM function calling application.
     *
     * Converts {@link OpenApi.IDocument OpenAPI document} or
     * {@link IHttpMigrateApplication migrated application} to the
     * {@link IHttpLlmApplication LLM function calling application}. Every
     * {@link OpenApi.IOperation API operations} in the OpenAPI document are
     * converted to the {@link IHttpLlmFunction LLM function} type, and they would
     * be used for the LLM function calling.
     *
     * If you have configured the {@link IHttpLlmApplication.IConfig.separate}
     * option, every parameters in the {@link IHttpLlmFunction} would be separated
     * into both human and LLM sides. In that case, you can merge these human and
     * LLM sides' parameters into one through {@link HttpLlm.mergeParameters}
     * before the actual LLM function call execution.
     *
     * @param props Properties for composition
     * @returns LLM function calling application
     */
    const application: (props: IApplicationProps) => IHttpLlmApplication;
    /** Properties for the LLM function call. */
    interface IFetchProps {
        /** Application of the LLM function calling. */
        application: IHttpLlmApplication;
        /** LLM function schema to call. */
        function: IHttpLlmFunction;
        /** Connection info to the HTTP server. */
        connection: IHttpConnection;
        /** Input arguments for the function call. */
        input: object;
    }
    /**
     * Execute the LLM function call.
     *
     * `HttmLlm.execute()` is a function executing the target
     * {@link OpenApi.IOperation API endpoint} with with the connection information
     * and arguments composed by Large Language Model like OpenAI (+human
     * sometimes).
     *
     * By the way, if you've configured the
     * {@link IHttpLlmApplication.IConfig.separate}, so that the parameters are
     * separated to human and LLM sides, you have to merge these human and LLM
     * sides' parameters into one through {@link HttpLlm.mergeParameters}
     * function.
     *
     * For reference, if the target API endpoint responds none 200/201 status,
     * this would be considered as an error and the {@link HttpError} would be
     * thrown. Otherwise you don't want such rule, you can use the
     * {@link HttpLlm.propagate} function instead.
     *
     * @param props Properties for the LLM function call
     * @returns Return value (response body) from the API endpoint
     * @throws HttpError when the API endpoint responds none 200/201 status
     */
    const execute: (props: IFetchProps) => Promise<unknown>;
    /**
     * Propagate the LLM function call.
     *
     * `HttmLlm.propagate()` is a function propagating the target
     * {@link OpenApi.IOperation API endpoint} with with the connection information
     * and arguments composed by Large Language Model like OpenAI (+human
     * sometimes).
     *
     * By the way, if you've configured the
     * {@link IHttpLlmApplication.IConfig.separate}, so that the parameters are
     * separated to human and LLM sides, you have to merge these humand and LLM
     * sides' parameters into one through {@link HttpLlm.mergeParameters}
     * function.
     *
     * For reference, the propagation means always returning the response from the
     * API endpoint, even if the status is not 200/201. This is useful when you
     * want to handle the response by yourself.
     *
     * @param props Properties for the LLM function call
     * @returns Response from the API endpoint
     * @throws Error only when the connection is failed
     */
    const propagate: (props: IFetchProps) => Promise<IHttpResponse>;
    /** Properties for the parameters' merging. */
    interface IMergeProps {
        /** Metadata of the target function. */
        function: ILlmFunction;
        /** Arguments composed by the LLM. */
        llm: object | null;
        /** Arguments composed by the human. */
        human: object | null;
    }
    /**
     * Merge the parameters.
     *
     * If you've configured the {@link IHttpLlmApplication.IConfig.separate}
     * option, so that the parameters are separated to human and LLM sides, you
     * can merge these humand and LLM sides' parameters into one through this
     * `HttpLlm.mergeParameters()` function before the actual LLM function call
     * execution.
     *
     * On contrary, if you've not configured the
     * {@link IHttpLlmApplication.IConfig.separate} option, this function would
     * throw an error.
     *
     * @param props Properties for the parameters' merging
     * @returns Merged parameter values
     */
    const mergeParameters: (props: IMergeProps) => object;
    /**
     * Merge two values.
     *
     * If both values are objects, then combines them in the properties level.
     *
     * Otherwise, returns the latter value if it's not null, otherwise the former
     * value.
     *
     * - `return (y ?? x)`
     *
     * @param x Value X to merge
     * @param y Value Y to merge
     * @returns Merged value
     */
    const mergeValue: (x: unknown, y: unknown) => unknown;
}