docs: def setUser(self, *args, **kwargs):
          """Adds the user for this loan to a 'user' field.
  
          User is a MambuUser object.
  
          Returns the number of requests done to Mambu.
          """
          try:
              user = self.mambuuserclass(entid=self['assignedUserKey'], *args, **kwargs)
          except KeyError as kerr:
              err = MambuError("La cuenta %s no tiene asignado un usuario" % self['id'])
              err.noUser = True
              raise err
          except AttributeError as ae:
              from .mambuuser import MambuUser
              self.mambuuserclass = MambuUser
              try:
                  user = self.mambuuserclass(entid=self['assignedUserKey'], *args, **kwargs)
              except KeyError as kerr:
                  err = MambuError("La cuenta %s no tiene asignado un usuario" % self['id'])
                  err.noUser = True
                  raise err
  
          self['user'] = user
  
          return 1