@spec has_bundled_types?(map()) :: boolean()

Checks if a package bundles its own types (has a types or typings field).

@spec installed_types(map()) :: [String.t()]

Lists all @types/ packages in the lockfile.

@spec missing_types(map(), map(), String.t()) :: [String.t()]

Finds packages that need @types/ definitions.

Returns packages that don't bundle types and whose @types/ package is not in the lockfile.

@spec types_map(map()) :: %{required(String.t()) => String.t()}

Maps installed @types/ packages back to the packages they provide types for.

@spec types_package(String.t()) :: String.t()

Returns the @types/ package name for a given package.