Wrap the rest of the object modules in elixir

lib/geef/blob.ex

@@ -0,0 +1,21 @@
+defmodule Geef.Blob do
+  alias Geef.Object
+
+  def lookup(repo, id) do
+    case :geef_obj.lookup(repo, id) do
+      {:ok, obj} ->
+        {:ok, Object.new obj}
+      error ->
+        error
+    end
+  end
+
+  def size(obj = Object[type: :blob]) do
+    :geef_blob.size(set_elem(obj, 0, :geef_object))
+  end
+
+  def content(obj = Object[type: :blob]) do
+    :geef_blob.content(set_elem(obj, 0, :geef_object))
+  end
+
+end