import * as DG from 'datagrok-api/dg';
/** Class for parsing FASTA files */
export declare class FastaFileHandler {
    private _fileContent;
    private _descriptionsArray;
    private _sequencesArray;
    get descriptionsArray(): string[];
    get sequencesArray(): string[];
    /**
     * Helper method to parse a macromolecule from a FASTA file (string)
     *
     * @param {number} startOfSequence  index of macromolecule substring beginning
     * @param {number} endOfSequence  index of macromolecule substring end
  
     * @return {string} parsed macromolecule
     */
    private parseMacromolecule;
    /** Parse descriptions and sequences from a FASTA string */
    private parseColumns;
    /**
     * File-handler method for import as FASTA
     *
     * @return {DG.DataFrame[]} dataframe with parsed FASTA content
     */
    importFasta(): DG.DataFrame[];
    constructor(fileContent: string);
}
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