tonyg

  ($lambda (f) (f (+ 3 4)))

  Person = <person @name String @address Address>

  Person = <person {
    @name "name": String
    @address "address": Address
  }>

  Person = {
    @name 1: String
    @address 2: Address
  }

  export type Person = {
    name: String,
    address: Address,
  };

  Person = <person @name String> .

  Person = @v2 <person @name String @address Address>
         / @v1 <person @name String> .

  <tag v1 v2 v3>

  <tag {
    field1: value1
    field2: value2
    field3: value3
  }>