builders perform necessary casting of return type when setting tags

apis/cloudsigma/src/main/java/org/jclouds/cloudsigma/domain/CreateDriveRequest.java

@@ -64,6 +64,14 @@ public class CreateDriveRequest extends Drive {
          return Builder.class.cast(super.name(name));
       }
 
+      /**
+       * {@inheritDoc}
+       */
+      @Override
+      public Builder tags(Iterable<String> tags) {
+          return Builder.class.cast(super.tags(tags));
+      }
+      
       /**
        * {@inheritDoc}
        */

apis/cloudsigma/src/main/java/org/jclouds/cloudsigma/domain/DriveData.java

@@ -43,6 +43,14 @@ public class DriveData extends Drive {
          return Builder.class.cast(super.name(name));
       }
 
+      /**
+       * {@inheritDoc}
+       */
+      @Override
+      public Builder tags(Iterable<String> tags) {
+          return Builder.class.cast(super.tags(tags));
+      }
+      
       /**
        * {@inheritDoc}
        */

apis/cloudsigma/src/main/java/org/jclouds/cloudsigma/domain/DriveInfo.java

@@ -141,6 +141,14 @@ public class DriveInfo extends Drive {
          return Builder.class.cast(super.claimType(claimType));
       }
 
+      /**
+       * {@inheritDoc}
+       */
+      @Override
+      public Builder tags(Iterable<String> tags) {
+          return Builder.class.cast(super.tags(tags));
+      }
+      
       /**
        * {@inheritDoc}
        */