# File lib/sshkit/mapping_interaction_handler.rb, line 21
    def on_data(_command, stream_name, data, channel)
      log("Looking up response for #{stream_name} message #{data.inspect}")

      response_data = @mapping_proc.call(data)

      if response_data.nil?
        log("Unable to find interaction handler mapping for #{stream_name}: #{data.inspect} so no response was sent")
      else
        log("Sending #{response_data.inspect}")
        if channel.respond_to?(:send_data) # Net SSH Channel
          channel.send_data(response_data)
        elsif channel.respond_to?(:write) # Local IO
          channel.write(response_data)
        else
          raise "Unable to write response data to channel #{channel.inspect} - does not support 'send_data' or 'write'"
        end
      end
    end