code: public static CompletableFuture<IMessageSender> createMessageSenderFromEntityPathAsync(String namespaceName, String entityPath, ClientSettings clientSettings)
      {
          Utils.assertNonNull("namespaceName", namespaceName);
          Utils.assertNonNull("entityPath", entityPath);
          return createMessageSenderFromEntityPathAsync(Util.convertNamespaceToEndPointURI(namespaceName), entityPath, clientSettings);
      }
docs: Creates a message sender asynchronously to the entity using the client settings.
  @param namespaceName namespace name of entity
  @param entityPath path of entity
  @param clientSettings client settings
  @return a CompletableFuture representing the pending creating of IMessageSender instance