Lightning - Passing data down the component hierarchy via a method

childComponentWithMethod.cmp

<aura:component >
    <aura:method name="myMethod" action="{!c.executeMyMethod}">
        <aura:attribute name="param1" type="String"/>
        <aura:attribute name="param2" type="String"/>
    </aura:method>
</aura:component>

childComponentWithMethodController.js

({
    executeMyMethod : function (component, event, helper) {
        var params = event.getParam('arguments');
        console.log('Param 1: '+ params.param1);
        console.log('Param 2: '+ params.param2);
    }
})

parentComponentCallingMethod.cmp

<aura:component >
    <aura:attribute name="parentAttribute1" type="String" default="A"/>
    <aura:attribute name="parentAttribute2" type="String" default="B"/>
    
    <c:childComponent aura:id="child"/>
    
    <lightning:button label="Call child method" onclick="{! c.callChildMethod }" />
</aura:component>

parentComponentCallingMethodController.js

({
	callChildMethod : function(component, event, helper) {
		var attribute1 = component.get('v.parentAttribute1');
        var attribute2 = component.get('v.parentAttribute2');
        var childComponent = component.find('child');
        childComponent.myMethod(attribute1, attribute2);
	}
})