如何在一个元素的打字稿中设置多个CSS样式属性？

请考虑以下代码段。我需要在打字稿中设置多个CSS属性。为此，我尝试了以下代码。

Please consider the below snippet. i need to set multiple CSS properties in typescript. for that i have tried the below code.

public static setStyleAttribute(element: HTMLElement, attrs: { [key: string]: Object }): void {
        if (attrs !== undefined) {
            Object.keys(attrs).forEach((key: string) => {
                element.style[key] = attrs[key];
            });
        }
    }

对于上述代码，我需要将参数传递为

for the above code i need to pass the parameters as

let elem: HTMLElement = document.getElementById('myDiv');
setStyleAttribute(elem, {font-size:'12px', color : 'red' , margin-top: '5px'});

但是上面的代码抛出错误（tslint），因为Element隐式地具有 any类型，因为索引表达式不是数字类型。
（属性）HTMLElement.style：CSSStyleDeclaration。

But the above code throws error(tslint) as Element implicitly has an 'any' type because index expression is not of type 'number'. (property) HTMLElement.style: CSSStyleDeclaration.

请帮助我！