MongoDB\BSON\Document::getIterator
  Returns an iterator for the BSON document
  
 
  Description
  
   final public MongoDB\BSON\Iterator MongoDB\BSON\Document::getIterator()
  
 
  Parameters
  This function has no parameters.
  
 
  Return Values
  
   Returns a MongoDB\BSON\Iterator instance that can be
   used to iterate over all keys in the document.
  
  
 
  Errors/Exceptions
  
   - Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
- Throws MongoDB\Driver\Exception\UnexpectedValueException if the BSON iterator could not be initialized.