 
   ## Example:
 
-    base_personalization = %{
-      bcc: [%{"email" => "bcc@bar.com", "name" => "BCC"}],
-      subject: "Here is your email"
-    }
-
-    personalizations =
-      Enum.map(
-        [
-          %{to: "one@test.com"},
-          %{to: "two@test.com", send_at: 1_580_485_560}
-        ],
-        &Map.merge(base_personalization, &1)
-      )
-
-    email =
-      new_email()
-      |> Email.put_header("Reply-To", "reply@foo.com")
-      |> Bamboo.SendGridHelper.add_personalizations(personalizations)
+      base_personalization = %{
+        bcc: [%{"email" => "bcc@bar.com", "name" => "BCC"}],
+        subject: "Here is your email"
+      }
+
+      personalizations =
+        Enum.map(
+          [
+            %{to: "one@test.com"},
+            %{to: "two@test.com", send_at: 1_580_485_560}
+          ],
+          &Map.merge(base_personalization, &1)
+        )
+
+      email =
+        new_email()
+        |> Email.put_header("Reply-To", "reply@foo.com")
+        |> Bamboo.SendGridHelper.add_personalizations(personalizations)
 
   """
   @spec add_personalizations(Bamboo.Email.t(), [map]) :: Bamboo.Email.t()

   ],
  ```


  The tag can be of any type since SendGrid allows you to use Handlebars in its templates

  ## Example

  end

  @doc """
  Set a map of unique arguments for this email. 

  This will override any existing unique arguments.

  ## Example

