class RubyLLM::Providers::Bedrock::Signing::Credentials

def initialize(options = {})
  if options[:access_key_id] && options[:secret_access_key]
    @access_key_id = options[:access_key_id]
    @secret_access_key = options[:secret_access_key]
    @session_token = options[:session_token]
  else
    msg = 'expected both :access_key_id and :secret_access_key options'
    raise ArgumentError, msg
  end
end