Salesforce Lightning component: Alternativa checkbox

<div class="slds-select_container slds-p-top_large slds-p-bottom_large" aura:id="phase1">
                        
	<fieldset class="slds-form-element">
		<legend class="slds-form-element__legend slds-form-element__label">Scegli il tipo di caricamento</legend>
		<div class="slds-form-element__control">
			<div class="slds-radio_button-group slds-m-top_medium">
				<span class="slds-button slds-radio_button">
					<input name="radio" type="radio" id="auto" value="auto" onclick="{!c.typePlanner}"/>
					<label class="slds-radio_button__label" for="auto">
						<span class="slds-radio_faux" >Auto</span>
					</label>
				</span>

				<span class="slds-button slds-radio_button">
					<input name="radio" type="radio" id="manual" value="manual"  onclick="{!c.typePlanner}" />
					<label class="slds-radio_button__label" for="manual">
						<span class="slds-radio_faux">Manual</span>
					</label>
				</span>
			</div>
		</div>
	</fieldset>
</div>