B_ij_fun                Calculates B_ij: the functional contribution to
                        dispersal probability I_ij
c_ij_fun                Calculates c_ij: the structural contribution to
                        the dispersal probability I_ij
d_index_calculation     Calculate Reach- and Catchment-scale index
                        improvement for scenarios of barriers removal
index_calculation       Reach- and Catchment-scale indices of
                        connectivity
set_graph_directionality
                        Create directed river graph based on outlet
                        flag
t_index_calculation     Calculates time-dependent index when nodes
                        weights or barriers passability are changing
t_passability_sequencer
                        Create the time-dependent metadata for barriers
t_weights_sequencer     Create the time-dependent weights data
