void warn(string $string) Write a string as warning output.
bool confirm(string $question, bool $default = false) Confirm a question
int run(InputInterface $input, OutputInterface $output) Run the console
string|array argument(string $key = null) Get the value of a command argument
void line(string $string, string $style = null, null|int|string $verbosity = null)
Application getLaravel()
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