code: def find_instance(self, name, module=None):
          
          module = module if module is not None else ffi.NULL
          definstance = lib.EnvFindInstance(self._env, module, name.encode(), 1)
          if definstance == ffi.NULL:
              raise LookupError("Instance '%s' not found" % name)
  
          return Instance(self._env, definstance)
docs: Find the Instance by its name.