General UDX API methods
The methods described in this section can be used with all types of UDXs (UDSFs, UDTFs, and UDAFs).
Each UDX, regardless of its type, must have a getName(), getType(), and getArgs()
function.
The methods described in this section can be used with all types of UDXs (UDSFs, UDTFs, and UDAFs).