entity framework for Go

 The ent package is a simple, yet powerful entity framework for Go,
 that makes it easy to build and maintain applications with large
 data-models.
 .
 Highlights include:
  - Schema As Code - model any database schema as Go objects.
  - Easily Traverse Any Graph - run queries, aggregations and traverse
    any graph structure easily.
  - Statically Typed And Explicit API - 100% statically typed and
    explicit API using code generation.
  - Multi Storage Driver - supports MySQL, PostgreSQL, SQLite and
    Gremlin.
  - Extendable - simple to extend and customize using Go templates.