declare const FIELD_VALUE_KIND: unique symbol;
export type FieldValueKind = 'delete' | 'serverTimestamp' | 'arrayUnion' | 'arrayRemove' | 'increment' | 'maximum' | 'minimum';
export declare class FieldValue {
    readonly [FIELD_VALUE_KIND]: FieldValueKind;
    readonly elements?: readonly unknown[];
    readonly operand?: unknown;
    private constructor();
    static delete(): FieldValue;
    static serverTimestamp(): FieldValue;
    static arrayUnion(...elements: unknown[]): FieldValue;
    static arrayRemove(...elements: unknown[]): FieldValue;
    static increment(n: number): FieldValue;
    static maximum(value: unknown): FieldValue;
    static minimum(value: unknown): FieldValue;
}
export declare function getFieldValueKind(value: unknown): FieldValueKind | null;
export {};
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