*/
bool isOutputStep(int64_t step) const;
-private:
std::vector<BiasCoupledToSystem> biasCoupledToSystem_; /**< AWH biases and definitions of their coupling to the system. */
const int64_t seed_; /**< Random seed for MC jumping with umbrella type bias potential. */
const int nstout_; /**< Interval in steps for writing to energy file. */