function u64 u64(): XmlField<bigint> An unsigned 64-bit integer field, read as a bigint so no digit is lost. Examples Read a 64-bit size import { assertEquals } from "@std/assert"; import { parse } from "@std/xml"; import { u64 } from "@hertzg/reolink-api/protocol/xml"; const parent = parse("<p><size>18446744073709551615</size></p>").root; assertEquals(u64().decode("size", parent), 18446744073709551615n); Return Type XmlField<bigint> A field codec for a bigint.