downCastTo
open fun <SubTypeOfSubjectT : Any, SubjectT> downCastTo(subType: KClass<SubTypeOfSubjectT>): SubjectChangerBuilder.FailureHandlerStep<SubjectT, SubTypeOfSubjectT>(source)
Uses DescriptionAnyExpectation.TO_BE_AN_INSTANCE_OF as description of the change, the given subType as representation and tries to perform a down-cast of container's AssertionContainer.maybeSubject to the given type SubTypeOfSubjectT