Method __construct

/**
 * Constructor.
 *
 * Mandatory arguments:
 * type         string          The type of the field. Should be a constant from static::VIEW_TYPE
 * fields       fields          The list of fields that will be rendered in the API.
 *
 * @param   string  $name       The event name.
 * @param   array   $arguments  The event arguments.
 *
 * @throws  BadMethodCallException
 */
public function __construct($name, array $arguments = array())
{
    if (!\array_key_exists('type', $arguments)) {
        throw new BadMethodCallException("Argument 'type' is required for event {$name}");
    }
    if (!\array_key_exists('fields', $arguments)) {
        throw new BadMethodCallException("Argument 'fields' is required for event {$name}");
    }
    if (!\array_key_exists('context', $arguments)) {
        throw new BadMethodCallException("Argument 'context' is required for event {$name}");
    }
    parent::__construct($name, $arguments);
}