validate() Validates the input. Exceptions
string getFirstArgument() Returns the first argument from the raw parameters (not parsed).
mixed getParameterOption(string|array $values, mixed $default = false, bool $onlyParams = false)
array getOptions() Returns all the given options merged with the default values.
mixed getOption(string $name) Returns the option value for a given option name.
bool hasArgument(string|int $name) Returns true if an InputArgument object exists by name or
bool hasOption(string $name) Returns true if an InputOption object exists by name.
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