import { EasyTuneVariable, EasyTuneVariableTyped } from "./easy_tune_variable_types.js";
export declare class EasyTuneVariables {
    private readonly _myVariables;
    add(variable: EasyTuneVariable, overwriteCurrentOne?: boolean): void;
    remove(variableName: string): void;
    get<ValueType>(variableName: string): Readonly<ValueType> | null;
    set<ValueType>(variableName: string, value: Readonly<ValueType>, resetDefaultValue?: boolean, skipValueChangedNotify?: boolean): void;
    has(variableName: string): boolean;
    length(): number;
    isWidgetCurrentVariable(variableName: string): boolean;
    getEasyTuneVariable<EasyTuneVariableType extends EasyTuneVariable>(variableName: string): EasyTuneVariableType | null;
    getEasyTuneVariablesList(): EasyTuneVariable[];
    getEasyTuneVariablesNames(): string[];
    changeEasyTuneVariableName(oldName: string, newName: string): void;
    fromJSON(json: string, resetDefaultValue?: boolean, skipValueChangedNotify?: boolean, manualImport?: boolean): void;
    toJSON(excludeVariablesWithValueAsDefault?: boolean): string;
    /**
     * @param id if `undefined` is used as id, it will overwrite the default variable listener
     */
    registerValueChangedEventListener<ValueType, EasyTuneVariableType extends EasyTuneVariableTyped<ValueType>>(variableName: string, id: unknown, callback: (value: ValueType, easyTuneVariable: EasyTuneVariableType) => void): void;
    /**
     * @param id if `undefined` is used as id, it will unregister the default variable listener
     */
    unregisterValueChangedEventListener(variableName: string, id?: unknown): void;
}