comparisonError method
Implementation
InvalidTypes<FhirDateTimeBase> comparisonError(
Comparator comparator, Object o) =>
InvalidTypes<FhirDateTimeBase>('Two values were passed to the date time '
'"$comparator" comparison operator, but there was an error comparing them.\n'
'Argument 1: $value (${value.runtimeType})\n'
'Argument 2: $o (${o.runtimeType})');