PHPLIB-679: Check presence and type of operation args
PHPLIB-679: Check presence and type of operation args

Explicit assertions can avoid differing behavior for undefined array keys (notice/warning on PHP 7/8, respectively).

mongodb/mongo-php-library,jmikola/mongo-php-library,jmikola/mongo-php-library,jmikola/mongo-php-library-prototype,jmikola/mongo-php-library,mongodb/mongo-php-library,mongodb/mongo-php-library,mongodb/mongo-php-library,jmikola/mongo-php-library,10gen-labs/mongo-php-library-prototype