code: def p_function_statement(self, p):
          'function_statement : funcvardecls function_calc'
          p[0] = p[1] + (p[2],)
          p.set_lineno(0, p.lineno(1)f p_function_statement(self, p):
          'function_statement : funcvardecls function_calc'
          p[0] = p[1] + (p[2],)
          p.set_lineno(0, p.lineno(1))
docs: function_statement : funcvardecls function_calc