Multioperation GraphQL query

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1

Is there a way to specify operation name for a multioperation GraphQL query?

query UserName {
    user {
        name
    }
}

query PostTitle {
    post {
        title
    }
}

I see in postman-collection code there is an operationName property prepared to accept it. But Iā€™m not seeing any way to get the app to set a value.