import { PDFObject } from './pdf-object.ts';
import type { PDFWriter } from './pdf-writer.ts';
/**
 * Represents a PDF boolean object, which can be either `true` or `false`.
 * Use the singleton instances `PDFBool.True` and `PDFBool.False` or the
 * static method `PDFBool.of()` to obtain PDFBool objects.
 */
export declare class PDFBool extends PDFObject {
    /** The boolean value of the PDFBool. */
    readonly value: boolean;
    /**
     * Represents the PDF boolean value `true`.
     */
    static readonly True: PDFBool;
    /**
     * Represents the PDF boolean value `false`.
     */
    static readonly False: PDFBool;
    /**
     * Returns the PDFBool for the given boolean value.
     */
    static of(value: boolean): PDFBool;
    private constructor();
    /**
     * Writes the PDF boolean to the given PDFWriter.
     */
    write(writer: PDFWriter): void;
}