[TypeScript] Can't use string, array or object as value in shape generator

[sesm]

Documentation shows the following example for shape generator:

gen({
  type: 'Place',
  name: gen.string,
  location: [ gen.number, gen.number ],
  address: {
    street: gen.string,
    city: gen.string
  }
})

This works perfectly fine in plain JS in master.

But in TS:

gen({
  type: 'Place'
})

causes compilation error: Type 'string' is not assignable to type 'ValueGenerator<{}>'

gen({
  location: [ gen.number, gen.number ],
})

causes compilation error: Type 'ValueGenerator<number>[]' is not assignable to type 'ValueGenerator<{}>'.

gen({
  address: {
    street: gen.string,
    city: gen.string
  }
})

causes compilation error: Type '{ street: ValueGenerator<string>; city: ValueGenerator<string>; }' is not assignable to type 'ValueGenerator<{}>'.

[sesm]

This looks like a more specific case of #79

[sesm]

Found an easy workaround:

gen({
  type: 'Place',
  name: gen.string,
  location: [ gen.number, gen.number ],
  address: {
    street: gen.string,
    city: gen.string
  }
} as {})