$db public property The MongoDB connection object or the application

$each public property Whether to return a single row during each

listCollections() public method Generates 'listCollections'

column() public method (available since version 2.1.2) Executes

addFile() public method Adds a file content to the upload

attributes() public method Returns the list of all attribute

invalidateCache() public method Invalidates RBAC related

key() public method Returns the index of the current dataset

run() public method Runs the explain action

getUserIdsByRole() public method Returns all user IDs