code: @GET
      @Path("/entitydef/guid/{guid}")
      @Produces(Servlets.JSON_MEDIA_TYPE)
      public AtlasEntityDef getEntityDefByGuid(@PathParam("guid") String guid) throws AtlasBaseException {
          AtlasEntityDef ret = typeDefStore.getEntityDefByGuid(guid);
  
          return ret;
      }
docs: Get the Entity definition for the given guid
  @param guid entity guid
  @return Entity definition
  @throws AtlasBaseException
  @HTTP 200 On successful lookup of the the entity definition by it's guid
  @HTTP 404 On Failed lookup for the given guid