lithium\data\entity\Document::offsetSet()
Allows document fields to be assigned as array keys, i.e. $document['_id'] = $id.
Parameters
- 
							mixed
							
$offsetString or integer indicating the offset or the name of a field in an individual document.
 - 
							mixed
							
$valueThe value to assign to the field.
 
Returns
voidSource
	public function offsetSet($offset, $value) {
		return $this->set([$offset => $value]);
	}