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OptionsResolver setDefined(string|string[]

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string[] getRequiredOptions() Returns the names of all required options.

offsetUnset($option) Not supported. Parameters

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

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

OptionsResolver setAllowedValues(string

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

OptionsResolver setAllowedTypes(string