Problem with creating a Mongoose model

Attraction.hx

package;

import js.npm.mongoose.macro.Manager;
import js.npm.mongoose.macro.Model;

typedef AttractionSchema = {
	name: String,
	description: String,
	location: { lat: Float, lng: Float },
	history: {
		event: String,
		?notes: String,
		email: String,
		date: Date,
	},
	?updateId: String,
	approved: Bool
}

class AttractionManager extends Manager<AttractionSchema, Attraction> {}

class Attraction extends Model<AttractionSchema>
{
	public static function build(db) {
		return AttractionManager.build(db, "Attraction"); 
	}
}

Main.hx

package;

public class Main
{
	static function main() {
	  var db = null; // Get the mongoose db from somewhere
	  var attractions = Attraction.build(db);

		var body = {
		  lat: 45.516011,
		  lng: -122.682062,
		  name: 'Portland Art Museum',
			description: 'Founded in 1892, the Portland Art Museum\'s colleciton ' +
				'of native art is not to be missed.  If modern art is more to your ' +
				'liking, there are six stories of modern art for your enjoyment.',
			email: '[email protected]',
		};

    // This doesn't compile to "new attractions({...})"
    // because of the call to Date
		attractions.construct({
			name: name,
			description: body.description,
			location: { lat: body.lat, lng: body.lng },
			history: {
				event: 'created',
				email: body.email,
				date: Date.now() // Problem!
			},
			approved: false
		}).save();
		
		// This works:
		var d = Date.now();
		
		attractions.construct({
			name: body.name,
			description: body.description,
			location: { lat: body.lat, lng: body.lng },
			history: {
				event: 'created',
				email: body.email,
				date: d // Working when using a variable
			},
			approved: false
		}).save();
	}
}