Example
{{#bs-form model=this onSubmit=(action "submit") as |form|}}
{{#form.element label="Email" placeholder="Email" property="email" as |el|}}
<div class="input-group">
<input value={{el.value}} class="form-control" placeholder="Email" oninput={{action (mut el.value) value="target.value"}} onchange={{action (mut el.value) value="target.value"}} id={{el.id}} type="text">
<span class="input-group-addon">@example.com</span>
</div>
{{/form.element}}
{{bs-button defaultText="Submit" type="primary" buttonType="submit"}}
{{/bs-form}}
