/** @brief The sharing policy */
void set_sharing_policy(s4u::Link::SharingPolicy policy, const s4u::NonLinearResourceCb& cb) override;
s4u::Link::SharingPolicy get_sharing_policy() const override { return sharing_policy_; }
/** @brief The sharing policy */
void set_sharing_policy(s4u::Link::SharingPolicy policy, const s4u::NonLinearResourceCb& cb) override;
s4u::Link::SharingPolicy get_sharing_policy() const override { return sharing_policy_; }