import { TranslateFunctionCall } from "../types";
export declare class POCollector {
    memory: Set<string>;
    allowedLanguages: Set<string>;
    constructor();
    collectFromAllFiles(sourceFiles: string[]): TranslateFunctionCall[];
    collectFromOneFile(sourceFile: string): TranslateFunctionCall[];
    collectFromOneFileGivenSourceCode(sourceFile: string, sourceCode: string): TranslateFunctionCall[];
    /**
     * keep memory of (text, lang) pairs to avoid duplicate translation requests
     * @param text
     * @param lang
     */
    private tryAddToMemory;
}