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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.import type { Range } from "./types.ts";import { isComparator } from "./_is_comparator.ts";
/** * Does a deep check on the object to determine if its a valid range. * * Objects with extra fields are still considered valid if they have at * least the correct fields. * * Adds a type assertion if true. * @param value The value to check if its a valid Range * @returns True if its a valid Range otherwise false. */export function isRange(value: unknown): value is Range {  return Array.isArray(value) &&    value.every((r) => Array.isArray(r) && r.every((c) => isComparator(c)));}