def parse_streams(e_ary)
      e_ary.map { |x| x.is_a?(Hash) && x['stream'] }.compact.join
    end
def parse_streams(e_ary)
      e_ary.map { |x| x.is_a?(Hash) && x['stream'] }.compact.join
    end
Gets all the console output from the stream logs.

 @param e_ary [Array<Hash>] The list of JSON messages already parsed.

 @return [String] The generated stdout output.

 @api private