/**
* Creates a new {@link LightInstruction}, verifying the action is valid and exactly two
* coordinates have been given.
*
* @param int $action {@link LightInstructionAction}
* @param Coordinate[] $coordinatePair two coordinates
* @return LightInstruction
* @throws \InvalidArgumentException
*/
public static function create($action, array $coordinatePair)
{
v::oneOf(v::equals(LightInstructionAction::TURN_ON), v::equals(LightInstructionAction::TURN_OFF), v::equals(LightInstructionAction::TOGGLE))->check($action);
v::length(2, 2)->check($coordinatePair);
v::each(v::instance('\\Hamdrew\\AdventOfCode\\Day6\\Coordinate'))->check($coordinatePair);
return new LightInstruction($action, $coordinatePair);
}