Function partial

partial(
    Class:
        | SchemaClass<
            z.core.$ZodOptional<
                z.core.$ZodType<
                    unknown,
                    unknown,
                    $ZodTypeInternals<unknown, unknown>,
                >,
            >,
        >
        | null,
    schema: z.core.$ZodObject,
    mask: object | undefined,
): any