Method get_env

include/exec/sequence/iterate.hpp:114–118

      }

      [[nodiscard]]
      constexpr auto get_env() const noexcept -> env_of_t<_Receiver>
      {
        return STDEXEC::get_env(__op_->__rcvr_);
      }

      __operation_base<_Iterator, _Sentinel, _Receiver>* __op_;
    };