<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def dump(self, indentlevel=0, target=sys.stdout):
 """Display the command Pretty printing of this command and its eventual arguments and children. (recursively) :param indentlevel: integer that indicates indentation level to apply """

        self.__print(self, indentlevel, target=target)
        indentlevel += 4
        if self.has_arguments():
            for arg in self.args_definition:
                if not arg["name"] in self.arguments:
                    continue
                value = self.arguments[arg["name"]]
                atype = arg["type"]
                if "tag" in atype:
                    self.__print(str(value), indentlevel, target=target)
                    if arg["name"] in self.extra_arguments:
                        value = self.extra_arguments[arg["name"]]
                        atype = arg["extra_arg"]["type"]
                    else:
                        continue
                if type(value) == list:
                    if self.__get_arg_type(arg["name"]) == ["testlist"]:
                        for t in value:
                            t.dump(indentlevel, target)
                    else:
                        self.__print("[" + (",".join(value)) + "]",
                                     indentlevel, target=target)
                    continue
                if isinstance(value, Command):
                    value.dump(indentlevel, target)
                    continue
                self.__print(str(value), indentlevel, target=target)
        for ch in self.children:
            ch.dump(indentlevel, target)