sub deployment_statements {
my ($self, $schema, $type, $version, $dir, $sqltargs) = @_;
+
+ $self->throw_exception(
+ 'Calling deployment_statements() in void context makes no sense'
+ ) unless defined wantarray;
+
$type ||= $self->sqlt_type;
$version ||= $schema->schema_version || '1.x';
$dir ||= './';