string|array argument(string $key = null) Get the value of a command argument
string secret(string $question, bool $fallback = true) Prompt the user
string anticipate(string $question, array $choices, string $default = null)
int call(string $command, array $arguments = array()) Call another console
string|array option(string $key = null) Get the value of a command option
string askWithCompletion(string $question, array $choices, string $default = null)
int callSilent(string $command, array $arguments = array()) Call another
bool confirm(string $question, bool $default = false) Confirm a question
bool hasOption(string $name) Determine if the given option is present.
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