code: func (s *RevokeStatement) String() string {
  	var buf bytes.Buffer
  	_, _ = buf.WriteString("REVOKE ")
  	_, _ = buf.WriteString(s.Privilege.String())
  	_, _ = buf.WriteString(" ON ")
  	_, _ = buf.WriteString(QuoteIdent(s.On))
  	_, _ = buf.WriteString(" FROM ")
  	_, _ = buf.WriteString(QuoteIdent(s.User))
  	return buf.String()
  }
docs: // String returns a string representation of the revoke statement.