Apollo Codegen TypeScript Generator

Apollo Codegen TypeScript Generator is an internal module of the now-deprecated `apollographql/apollo-tooling` monorepo. Its primary function was to facilitate the generation of TypeScript types from GraphQL schemas and operation documents, predominantly via the `apollo client:codegen` CLI command. The package's last version, 0.40.9, was released around 2020. This package, and the `apollo` CLI commands it powered, are no longer actively maintained. Apollo has officially deprecated `apollo client:codegen`, directing users to adopt `GraphQL Code Generator` for type generation. This shift marks the end of its release cadence and dedicated support. Its key differentiator was its deep integration within the Apollo CLI ecosystem, providing a streamlined, opinionated approach to type generation for Apollo Client users. However, this opinionated nature also meant less flexibility compared to more customizable alternatives like `GraphQL Code Generator`.