adds NodesNotFoundError
adds NodesNotFoundError

pgmpy/pgmpy,sandeepkrjha/pgmpy,abinashpanda/pgmpy,yashu-seth/pgmpy,jhonatanoliveira/pgmpy,palashahuja/pgmpy,kislayabhi/pgmpy,anaviltripathi/pgmpy,ankurankan/pgmpy,liquidmetal/pgmpy,pratyakshs/pgmpy,palashahuja/pgmpy,yashu-seth/pgmpy,anaviltripathi/pgmpy,liquidmetal/pgmpy,sandeepkrjha/pgmpy,kris-singh/pgmpy,khalibartan/pgmpy,kris-singh/pgmpy,vivek425ster/pgmpy,pgmpy/pgmpy,abinashpanda/pgmpy,jhonatanoliveira/pgmpy,khalibartan/pgmpy,pratyakshs/pgmpy,vivek425ster/pgmpy,ankurankan/pgmpy,kislayabhi/pgmpy