Azure Function Queue, how to pick up 1 dice at a time?

Question

Hello, good(m) (day, afternoon, night)

I am working with a Function that when activated makes a very heavy processing.

Because of that I can’t let her pick up multiple dice in the queue, it needs to be one at a time, In this documentation I found some settings that apparently would work, but came to nothing:

Note: I am using v2, the explanations have on the first link

https://github.com/Azure/azure-functions-host/wiki/host.json

https://github.com/Azure/azure-functions-host/wiki/host.json-(v2)

The last configuration I tried was based on v2:

{
  "version": "2.0",
  "logging": {
    "applicationInsights": {
      "samplingExcludedTypes": "Request",
      "samplingSettings": {
        "isEnabled": true
      }
    },
    "queues": {
      "maxDequeueCount": 0
    },
    "serviceBus": {
      "messageHandlerOptions": {
        "maxConcurrentCalls": 1
      }
    }
  }
}

maxConcurrentCalls: By default it takes 16 items from the queue, already tested and from that same. but changing the configuration to any version format does not work