array resolve(array $options = array()) Returns the combination of the default and the passed

bool isKnown(string $option) Returns whether an option is known. An option is known if

string[] getMissingOptions() Returns the names of all options missing a default value.

OptionsResolver addAllowedTypes(string

int count() Returns the number of set options. This may be only a subset of the defined

Op

interface Options implements ArrayAccess,

offsetSet($option, $value) Not supported.

array resolve(array $options = array()) Merges options with the default values stored in the

bool isRequired(string $option) Returns whether an option is required. An option is required