makeJSONToExport($data);

sub makeJSONToExport {
	my ($hashref) = @_;

	my $typehint_raw =  {
	        age    	=> JSON_TYPE_INT,
	        lastname  	=> JSON_TYPE_STRING,
	        firstname      	=> JSON_TYPE_STRING};

	my $typehint_raws = [ ($typehint_raw) x  @$hashref];
	my $json = encode_json($hashref, $typehint_raws);
	# my $json = encode_json($hashref, );
	return $json;
}