Mockito Kotlin, how can I verify the method is called? ``` verify(fhirRepo, times(1)).sa...

# test

[xenoterracide]

Mockito Kotlin, how can I verify the method is called?

verify(fhirRepo, times(1)).savePeriodicDump(any())

Parameter specified as non-null is null: method gateway.model.fhir.FhirPatientRepository.savePeriodicDump, parameter dump
java.lang.IllegalArgumentException: Parameter specified as non-null is null: method 
`