This is the second subunit of MyUnit, By definition, it must
implement at least one API functions, and all the API's it implements
must be unique to it (other subunits shouldn't implement them).

Since this subunit has only one implementation, all the API function
implementations will reside in this directory, and there is no
subdirectory with a capitalized name. For details on subunits with
multiple implementations, please see the README.MyUnitMain file in
MyUnitMain directory.