This is used to debug an MSD by calling some FIDL methods on it directly.
It is most easily used via ffx component explore for example the following should work on most platforms:
ffx component explore msd --tools fuchsia-pkg://fuchsia.com/magma-debug-utils -c "magma-debug-utils --count=1 --power-state=0,1"
Note: Make sure to rerun fx build after making changes to this file!