Duration is missing from MdSnackBar

Bug, feature request, or proposal:

Bug

What is the expected behavior?

According to docs, there should be a duration property in MdSnackBarConfig type

What is the current behavior?

There is not a duration property in MdSnackBarConfig

Throws:

Argument of type '{ duration: number; }' is not assignable to parameter of type 'MdSnackBarConfig'.
Object literal may only specify known properties, and 'duration' does not exist in type 'MdSnackBarConfig'.

What are the steps to reproduce?

Try to add a duration property to the configuration object when open a SnackBar.

Which versions of Angular, Material, OS, browsers are affected?

Angular: 2.2.1 Material: alpha-10 OS: Windows 10 AU

[valdestron]

Temporary workaround:

import { Injectable } from '@angular/core';
import { MdSnackBarRef, MdSnackBar, MdSnackBarConfig } from '@angular/material';

@Injectable()
export class AlertsService {
	public snackBarRef: MdSnackBarRef<any>;
	
	constructor(
		private snackBar: MdSnackBar
	) { }

	showMsg(type: string, msg: string, haveAction: boolean, actionLabel: string, duration: number) {
		const config: any = new MdSnackBarConfig(); // <-- https://github.com/angular/material2/issues/2020
		this.snackBarRef = this.snackBar.open(msg, haveAction && actionLabel, config);

		setTimeout(() => {
			this.snackBarRef.dismiss();
		}, (duration || 1) * 1000);
	}
}

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