<s> import os <EOL> from montepython . likelihood_class import Likelihood_prior <EOL> class hst ( Likelihood_prior ) : <EOL> def loglkl ( self , cosmo , data ) : <EOL> h = cosmo . h ( ) <EOL> loglkl = - <NUM_LIT:0.5> * ( h - self . h ) ** <NUM_LIT:2> / ( self . sigma ** <NUM_LIT:2> ) <EOL> return loglkl </s>
