import type { BacktraceFrame } from '@hawk.so/types';
/**
 * Parsing and formatting error's backtrace
 */
export default class BacktraceHelper {
    /**
     * Error to be processed
     */
    private error;
    /**
     * Initialize a class
     * @param error — event error to be processed
     */
    constructor(error: Error);
    /**
     * Return backtrace matching types scheme
     */
    getBacktrace(): BacktraceFrame[];
    /**
     * Format frame data to BacktraceFrame scheme
     * @param frame — backtrace step
     */
    private parseStackFrame;
    /**
     * Check if frame is an internal node call
     * You should not reach sources and show code pieces for internal calls
     * @param frame — backtrace step
     */
    private isInternal;
    /**
     * Read a source file as an array of lines
     * @param filepath - path to file to be read
     */
    private getSourceFileAsLines;
    /**
     * Return lines as file chuck with a target line
     * @param filename - path to file to be read
     * @param targetLine - number of line with an call
     * @param linesBuffer — number of lines before and after target line to be read
     */
    private getFileChunk;
}