code: def p_domain_block(self, p):
          '''domain_block : DOMAIN IDENT LCURLY req_section domain_list RCURLY'''
          d = Domain(p[2], p[4], p[5])
          p[0] = ('domain', df p_domain_block(self, p):
          '''domain_block : DOMAIN IDENT LCURLY req_section domain_list RCURLY'''
          d = Domain(p[2], p[4], p[5])
          p[0] = ('domain', d)
docs: domain_block : DOMAIN IDENT LCURLY req_section domain_list RCURLY