code: public static CompletableFuture<IMessageSender> createMessageSenderFromConnectionStringAsync(String amqpConnectionString) {
          Utils.assertNonNull("amqpConnectionString", amqpConnectionString);
          return createMessageSenderFromConnectionStringBuilderAsync(new ConnectionStringBuilder(amqpConnectionString));
      }
docs: Create message sender asynchronously from connection string with <a href="https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-sas">Shared Access Signatures</a>
  
  @param amqpConnectionString the connection string
  @return a CompletableFuture representing the pending creating of {@link IMessageSender} instance