_usedProperties['sender'] = true; $this->sender = $value; return $this; } /** * @param mixed $value * * @return $this */ public function recipients(mixed $value): static { $this->_usedProperties['recipients'] = true; $this->recipients = $value; return $this; } public function __construct(array $value = []) { if (array_key_exists('sender', $value)) { $this->_usedProperties['sender'] = true; $this->sender = $value['sender']; unset($value['sender']); } if (array_key_exists('recipients', $value)) { $this->_usedProperties['recipients'] = true; $this->recipients = $value['recipients']; unset($value['recipients']); } if ([] !== $value) { throw new InvalidConfigurationException(sprintf('The following keys are not supported by "%s": ', __CLASS__).implode(', ', array_keys($value))); } } public function toArray(): array { $output = []; if (isset($this->_usedProperties['sender'])) { $output['sender'] = $this->sender; } if (isset($this->_usedProperties['recipients'])) { $output['recipients'] = $this->recipients; } return $output; } }