/**
 * Jupyter messaging protocol's _jupyter_types_experimental completion result.
 */
interface CompletionResult {
    end: number;
    start: number;
    type: string;
    text: string;
    displayText?: string;
}
/**
 * Juptyer completion match item.
 */
export declare type CompletionMatch = string | CompletionResult;
/**
 * Jupyter messaging protocol's complete_reply response.
 */
export interface CompletionResults {
    status: string;
    cursor_start: number;
    cursor_end: number;
    matches: CompletionMatch[];
    metadata?: {
        _jupyter_types_experimental?: any;
    };
}
/**
 * Create Jupyter messaging protocol's complete_request message.
 * @param code Code of editor.
 * @param cursorPos cursor position represented in the Jupyter messaging protocol (character position)
 */
export declare const completionRequest: (code: string, cursorPos: number) => import("@nteract/messaging").JupyterMessage<"complete_request", any>;
/**
 * JavaScript stores text as utf16 and string indices use "code units",
 * which stores high-codepoint characters as "surrogate pairs",
 * which occupy two indices in the JavaScript string.
 * We need to translate cursor_pos in the protocol (in characters)
 * to js offset (with surrogate pairs taking two spots).
 * @param js_idx JavaScript index
 * @param text Text
 */
export declare const js_idx_to_char_idx: (js_idx: number, text: string) => number;
export {};