def add_enabled_equivalencies(equivalencies):
 context = _UnitContext(get_current_unit_registry())
 get_current_unit_registry().add_enabled_equivalencies(equivalencies)
 return context

def add_enabled_equivalencies ( equivalencies ) : context = _UnitContext ( get_current_unit_registry ( ) ) get_current_unit_registry ( ) . add_enabled_equivalencies ( equivalencies ) return context
adds to the equivalencies enabled in the unit registry .