resolversetNormalizerdataclass

resolversetNormalizerdataclass is a Python-centric pattern and object that encapsulates the normalization of a set of resolver entries. It provides a standardized, serializable representation of potentially heterogeneous resolver specifications, enabling deduplication, canonical ordering, and consistent formatting across systems and configurations.

Its primary goals are idempotence and determinism: applying the normalization process multiple times yields the same result, and the same input always maps to the same canonical form. The class typically supports pluggable rules for address normalization, protocol defaults, and case handling, so it can adapt to different environments.

Common attributes include a collection of resolvers and optional normalization rules. The resolvers may be represented by lightweight descriptors (host, port, type) rather than full objects. A post-init step applies normalization to build a stable internal form, often sorting the entries and removing duplicates. Methods commonly exposed are normalize, add_resolver, and to_dict/from_dict for serialization.

Use cases include preparing DNS or service discovery configurations, generating deterministic fixtures for tests, and simplifying change tracking in infrastructure as code. The pattern favors immutability in the produced form and predictable hashing or string representation to support caching and comparison tasks.

See also: Resolver, dataclass, normalization, canonical form.