/**
* @inheritdoc
*/
public function removeChild(CustomerInterface $child)
{
if ($this->hasChild($child)) {
$this->children->removeElement($child);
}
return $this;
}
/**
* @inheritdoc
*/
public function removeCustomer(CustomerInterface $customer)
{
if ($this->hasCustomer($customer)) {
$this->customers->removeElement($customer);
}
return $this;
}