descriptorBase32OrNull  
  Produces the base 32 descriptor string for this AuthKey.Private in the form of {address-w/o-.onion}:descriptor:{algorithm}:{base-32}, or null if isDestroyed is true.
Produces the base 32 descriptor string for this AuthKey.Private in the form of {address-w/o-.onion}:descriptor:{algorithm}:{base-32}, or null if isDestroyed is true.