{
  "name": "validating",
  "when": [
    ["Action", "a", facts => facts.a.name === 'validating'],   
    [Table, "t"]
  ],
  "then": [
    `console.log(facts)`,
    `if (!t.Name){
        throw new Error('!Name', t.Name)
      }else{
        console.log('validating',t.Name,'=>OK')
      }`
  ]
}