Context::setUser

public function setUser($contextUser): self
{
	if (is_numeric($contextUser))
	{
		$this->setUserId((int)$contextUser);
	}
	elseif ($contextUser instanceof User)
	{
		$this->setUserId($contextUser->getId());
	}
	elseif ($contextUser === null)
	{
		$this->resetUser();
	}

	return $this;
}