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Other operators
where
  pact
(where field f obj)  pact
(where field f obj)- takes field:string
- takes f: a ->bool
- takes obj:object
- produces bool
utility for use in filter and select applying f to field in obj
Supported in either invariants or properties.
typeof
  pact
(typeof a)  pact
(typeof a)- takes a: a
- produces string
return the type of a as a string
Supported in either invariants or properties.