export type GetLabel<Option> = (option: Option) => string;
export type GetValue<Option, Value> = (option: Option) => Value;
export type GetGroupValue<Option> = (option: Option) => unknown;
export type GetGroupLabel<Option> = (option: Option) => string;
export type GetDisabled<Option> = (option: Option) => boolean;
export type DefaultOption<Value> = {
    label: string;
    value: Value;
};
export declare function getDefaultLabel<Option>(o: Option): string;
export declare function getDefaultValue<Option, Value>(o: Option): Value;