code: def run(self, name=None, fake=False):
          
          self.logger.info('Starting migrations')
  
          done = []
          diff = self.diff
          if not diff:
              self.logger.info('There is nothing to migrate')
              return done
  
          migrator = self.migrator
          for mname in diff:
              self.run_one(mname, migrator, fake=fake, force=fake)
              done.append(mname)
              if name and name == mname:
                  break
  
          return done
docs: Run migrations.