def visit_check_constraint(self, constraint):
    text = super(SQLiteDDLCompiler, self).visit_check_constraint(constraint)
    on_conflict_clause = constraint.dialect_options['sqlite']['on_conflict']
    if (on_conflict_clause is not None):
        text += (' ON CONFLICT ' + on_conflict_clause)
    return text
def visit_check_constraint(self, constraint):
    text = super(SQLiteDDLCompiler, self).visit_check_constraint(constraint)
    on_conflict_clause = constraint.dialect_options['sqlite']['on_conflict']
    if (on_conflict_clause is not None):
        text += (' ON CONFLICT ' + on_conflict_clause)
    return text