; Description
: A handler to trigger when a remote client has requested to read a local characteristic or descriptor.
; Arguments in event
: ''address''
:: Address of the connected/disconnected remote LE device.
: ''requestId''
:: Request id of the attribute read request.
: ''characteristic?''
:: The characteristic requested to read. Null if remote client requests to read a local descriptor.
: ''descriptor?''
:: The descriptor requested to read. Null if remote client requests to read a local characteristic.
=== onattributewritereq ===