The constructor needs to be public so that the options can be correctly copied over to the runtime call.

Comment From: bruno-oliveira

@tzolov @markpollack @sobychacko

Comment From: markpollack

Will review, thanks. Note, a better anthropic experience can be found using the Bedrock Converse support that was recently added.

Comment From: markpollack

merged in 1453198c5b9b0e1996527747be584ebd7bcc5fd3

sorry it took so long.