I'm currently developing a BLE App for iOS.
In my application I need to implement a segmentation protocol to send large quantities of data using BLE.
My application need to have the Central role.

My issue is that I can't get the negotiate MTU. I can get the `maximumWriteValueLength` of my peripheral but it is bigger that mine and can't find the `maximumWriteValueLength` of my central object.

Does someone know a way to find the negotiated MTU or a way to access the `CBCentral` object of my `CBCentralManager`?