import type { EyeFileType } from '../../../type/EyeFile/EyeFileType.js';
import type { EyeSettingsType } from '../../../type/Settings/EyeSettings/EyeSettingsType.js';
export declare class EyeClassifier {
    classify(slice: string): EyeSettingsType;
    getTypeFromSlice(slice: string): EyeFileType;
    getColumnDelimiter(type: EyeFileType, slice: string): string;
    isTobii(slice: string): boolean;
    isGazePoint(slice: string): boolean;
    isBeGaze(slice: string): boolean;
    isOgama(slice: string): boolean;
    isVarjo(slice: string): boolean;
    isCsv(slice: string): boolean;
    isCsvSegmented(slice: string): boolean;
    /**
     * To determine the delimiter used in a CSV file, we count the number of occurrences of the two most common delimiters
     * (',' and ';') in the header row. The delimiter with the higher count is used.
     *
     * @param slice - Text content of the first slice of the file, containing the header row
     * @returns delimiter used in the CSV file (either ',' or ';')
     */
    determineCsvDelimiter(slice: string): string;
}