json-stable-stringify

stableStringify: (
    obj: object,
    options?:
        | (stableStringify.Comparator & stableStringify.StableStringifyOptions)
        | stableStringify.StableStringifyOptions
) => string | undefined;

type Comparator = (
    a: { key: string; value: unknown },
    b: { key: string; value: unknown },
    getter: Getter
) => number;

type Getter = { get(key: Key): unknown };

type Key = string | number;

type Node = unknown[] | NonArrayNode;

type NonArrayNode = Record<Key, unknown>;

type StableStringifyOptions = {
    cmp?: Comparator;
    cycles?: boolean;
    replacer?: (this: Node, key: Key, value: unknown) => unknown;
    space?: string | number;
};