void question(string $string) Write a string as question output.
string anticipate(string $question, array $choices, string $default = null)
string choice(string $question, array $choices, string $default = null, mixed $attempts = null, bool $multiple = null)
void line(string $string) Write a string as standard output.
string|array argument(string $key = null) Get the value of a command argument
void fire() Execute the console command.
int callSilent(string $command, array $arguments = array()) Call another
void error(string $string, null|int|string $verbosity = null) Write a string
void warn(string $string, null|int|string $verbosity = null) Write a string
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