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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def set_banner(self, banner_type, value=None, default=False, disable=False):
 """Configures system banners Args: banner_type(str):
 banner to be changed (likely login or motd) value(str):
 value to set for the banner default (bool):
 Controls the use of the default keyword disable (bool):
 Controls the use of the no keyword` Returns: bool: True if the commands completed successfully otherwise False """


        command_string = "banner %s" % banner_type
        if default is True or disable is True:
            cmd = self.command_builder(command_string, value=None,
                                       default=default, disable=disable)
            return self.configure(cmd)
        else:
            if not value.endswith("\n"):
                value = value + "\n"
            command_input = dict(cmd=command_string, input=value)
            return self.configure([command_input])