refactor _no_missing_states function
refactor _no_missing_states function

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