import { TemplateRef, EventEmitter, Provider } from "@angular/core";
import { ControlValueAccessor } from "@angular/forms";
import { NgClass } from "@angular/common";
export declare const CUSTOM_CHECKBOX_CONTROL_VALUE_ACCESSOR: Provider;
/** Checkboxes allow a user to toggle an option on or off, or make multiple choices in a set of available options. */
export declare class CheckboxComponent implements ControlValueAccessor {
    /** Checkbox required label, supported types: `string`, `TemplateRef<HTMLElement>` */
    label: string | TemplateRef<HTMLElement>;
    /** Checbox optional id, supported type: `string`, default random string value will be set if not provided */
    _id?: string;
    /** Checkbox optional name, supported type: `string` */
    name?: string;
    /** Checkbox optional className, supported type: `ngClass` */
    className?: NgClass;
    /** Checkbox optional disabled state, supported type: `boolean`, default value: `false`*/
    disabled?: boolean;
    /** Checkbox optional description, supported types: `string`, `TemplateRef<HTMLElement>` */
    description?: string | TemplateRef<HTMLElement>;
    /** Checkbox optional error, supported types: `string`, `TemplateRef<HTMLElement>` */
    error?: string | TemplateRef<HTMLElement>;
    /** Checkbox optional onChange event emitter */
    onChange?: EventEmitter<boolean>;
    private _value;
    private onTouchedCallback;
    private onChangeCallback;
    get value(): boolean;
    set value(v: boolean);
    writeValue(value: boolean): void;
    registerOnChange(fn: (_: any) => {}): void;
    registerOnTouched(fn: () => {}): void;
    /**
     * Check if input parameter is a string
     */
    isString: (input: any) => boolean;
}