isKeyType isKeyType(t: Type): Boolean Returns true if the input is the Key type. Introduced in DataWeave version 2.3.0. Parameters Name Description t The type to check. Example This example shows how isKeyType behaves with different inputs. Source %dw 2.0 import * from dw::core::Types type AKey = Key output application/json --- { a: isKeyType(AKey), b: isKeyType(Key), c: isKeyType(Boolean), } Output { "a": true, "b": true, "c": false }