Unable to fetch pipelin id from issueByInfo

I am trying to fetch pipeline id using below query. I am expecting a nodeid which is hex value while i am receving an id which is numerical. How can I get pipeline id?

query($repositoryGhId: Int!, $repositoryId: ID!, $issueNumber: Int!,$pageSize: Int! ){
    issueByInfo(repositoryGhId:$repositoryGhId, repositoryId:$repositoryId, issueNumber:$issueNumber){
        id
        number
        title
        timelineItems (first: $pageSize) {
                totalCount
                pageInfo {
                    endCursor
                    hasNextPage
                    hasPreviousPage
                    startCursor
                }
                
                
                nodes {
                    id
                    key
                    key
                    createdAt
                    data
                    
                }
            }

    }
}