Apex Controller


public class TestingIntegrationErrorHandling {
    @AuraEnabled
    public static object sampleCallout(){
        system.debug('entered apex');
       
        return object;
    }
}

The controller is working perfect

Parent Component:

<aura:component implements="flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId" access="global" controller="CDI_TestingIntegrationErrorHandling" >
	<aura:attribute name="messageLog" type="Object__C" />
    <c:CDI_TestComponentParent aura:id="child"/>
    <lightning:button label="CallErrorHandlingComp" onclick="{! c.callChildMethod }" />
</aura:component>

Controller:
callChildMethod : function(component, event, helper) {
       console.log('calling child method');
       
        var action = component.get("c.sampleCallout"); 
        action.setCallback(this, function(result){
            var messageLog = result.getReturnValue();
            console.log('---messageLog-- ' + messageLog);
            component.set("v.messageLog", messageLog);
            
        });
        var childCmp = component.find("MessagePanel");
        var retnMsg = childCmp.executeMyMethod(messageLog);
        consolo.log('executing child');
        
        $A.enqueueAction(action);      
        
	}

Child component:
<aura:component access="global">	
    <aura:method name="executeMyMethod" action="{!c.executeMyMethod}">
         <aura:attribute name="messageLog" type="MessageLog__c" />
    </aura:method>	
</aura:component>

Controller:
executeMyMethod : function (component, event, helper) {
        var params = event.getParam('arguments');
        if (params) {
            var param1 = params.MessageLog__c;
			console.log('param1  ' + param1);
            component.set('v.messageLog',params.MessageLog__c);
            
        }
    }