[JIRA] Getting the "body" key from the last object in the Comments array

Hello, 

I am trying to use the app JIRA > Action: Get Issue Comments to get the last comment in a ticket. 

The data output I need gives me:

"comment" : {
    "comments": [
        {
            "body": "string"
        },
        {
            "body": "string"
        },
    ]
}

How can I get the "body" key from the last object?

I attempted to use the last() method which gives me the last object in the array, but I'm not able go further and get the Body. Any help is appreciated. Thanks!

I was able to resolve this. I was previously using 

[Step X: Comments].last().pluck('body') 

Which gave me the error: no implicit conversion of String into Integer

I just switched the methods around so that I'm plucking all the keys 'body' THEN getting the last value from the new array:

[Step X: Comments].pluck('body').last()

Hope this helps anyone that was also stuck with this issue.