title: How can I get the list of entity types from an ObjectContext at runtime using EF code first?
body: <p>I'm trying to write some extensions on top of EF and I need to be able to inspect a code first ObjectContext and retrieve the entity types in it. I feel like this should be available somewhere in the metadata workspace, but I'm not sure where to look. I'm using EF 5.</p>
  
  <p>Note that we don't use any kind of code generation to create our contexts, nor do we put type-specific DbSet accessors on the DbContext base class. Thus, I can't simply reflect over the DbContext/ObjectContext to look that such properties.</p>