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def do_something(message):

    command = message['message']
    user = message['display-name'] 
    user_id_command = message['user-id']
    user_type = message['user-type'] 
    
    prefix_volume = '!volume'
    prefix_skip = '!skip'
    prefix_sr = '!sr'
    prefix_atual = '!atual'
    
    command_volume = command.startswith(prefix_volume)
    command_skip = command.startswith(prefix_skip)
    command_sr = command.startswith(prefix_sr)
    command_atual = command.startswith(prefix_atual)
    
    if user_type == 'mod' or user_id_command == USERID:
        
        if command_volume:
            volume_value_command = command.split(prefix_volume,1)[1]
            volume_value_int = int(volume_value_command)
            
            if volume_value_int in range(0, 101):
                vlc_player.volume_command(volume_value_command)
                message_response = user +' --> O volume foi alterado para ' + volume_value_command
                send_message(message_response)
            else:
                message_response = user +' --> O volume deve ser um valor entre 0 e 100'
                send_message(message_response)
            
        elif command_skip:
            vlc_player.stop()
            message_response = user +' --> A musica foi pulada '
            send_message(message_response)
            
        elif command_sr:
            user_input = command.split(prefix_sr,1)[1]
            if user_input == '':
                message_response = user + ' --> Você deve fornecer um nome ou link de musica válido'
                send_message(message_response)
            else:
                if validators.url(user_input):
                    append_new_line('src/queue.txt', 'MUSICA: ( ' + user_input + ' ) USUÁRIO:' + user)
                else:
                    simbols = [['[', ']'], ['(', ')'], ['"', '"']]
                    rep_input = removestring(user_input, simbols)
                    append_new_line('src/queue.txt', 'MUSICA: ( ' + rep_input + ' ) USUÁRIO:' + user)
                
        elif command_atual:
            f = open('src/currentsong.txt', 'r+')
            musica_atual = f.read()
            message_response = user + ' --> A musica atual é : ' + musica_atual
            send_message(message_response)
            
    else:
        if command_atual:
            f = open('src/currentsong.txt', 'r+')
            musica_atual = f.read()
            message_response = user + ' --> A musica atual é :' + musica_atual
            send_message(message_response)

connection.listen(USERNAME,on_message=do_something)