interface Props {
    singleSchema: boolean;
    name: string;
}
export declare class SchemaCount {
    private readonly singleSchema;
    private readonly name;
    private _value;
    private readonly observers;
    constructor({ singleSchema, name }: Props);
    setValue(v: number): void;
    value(): number | null;
    register(fun: (v: number) => void): void;
}
export {};