public function loadMembership(Production $production, UserInterface $user): ?ProductionMembershipInterface
    {
        return $this->membership_provider->loadMembership($production, $user);
    }
public function loadMembership(Production $production, UserInterface $user): ?ProductionMembershipInterface
    {
        return $this->membership_provider->loadMembership($production, $user);
    }
public function loadMembership ( Production $ production , UserInterface $ user ) : ? ProductionMembershipInterface { return $ this -> membership_provider -> loadMembership ( $ production , $ user ) ; }
Load a membership using available membership provider.

@param Production    $production The production to load a membership for.
@param UserInterface $user       The user to load a membership for.

@return ?ProductionMembershipInterface
Load a membership using available membership provider .