code: def _nacm_default_deny_stmt(self, stmt: Statement, sctx: SchemaContext) -> None:
          
          if not hasattr(self, 'default_deny'):
              return
          if stmt.keyword == "default-deny-all":
              self.default_deny = DefaultDeny.all
          elif stmt.keyword == "default-deny-write":
              self.default_deny = DefaultDeny.write
docs: Set NACM default access.