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

Op

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

string[] getDefinedOptions() Returns the names of all defined options.

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

OptionsResolver setDefined(string|string[]

offsetUnset($option) Not supported. Parameters

OptionsResolver setAllowedTypes(string

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Op