The “ClaLoad” class defines three methods for the management of units:
“getUnits” returns a Hash containing the definition of units associated with the load.
“setUnits” has a Hash argument and sets the units associated with the load.
“changeUnits” has a Hash argument and changes the units associated with the load.
The Hash arguments or return values mentioned above have String keys and values as explained in section II.1.13. The difference between the “setUnits” and “changeUnits” methods is also explained in the same section.