code: def supprime(cls,table, **kwargs):
          
          assert len(kwargs) == 1
          field, value = kwargs.popitem()
          req = f"""DELETE FROM {table} WHERE {field} = """ + cls.mark_style
          args = (value,)
          return MonoExecutant((req, args))
docs: Remove entries matchin given condition
          kwargs is a dict of column name :  value , with length ONE.