For the evaluation purpose of the ATtiny 416 microcontroller, the ATtiny416 Xplained Nano evaluation kit is a hardware platform supported by Atmel Studio free integrated development platform which offers features like wide range of access to device I/O, one button and One LED and its onboard debugger offers the complete solution for the integrated debug and program tool for the kit, thus eliminating the external debug and program tool.
Features

ATtiny416 microcontroller, 20-pin 4kB Flash MCU
Embedded programmer for programming the host MCU (mEDBG)
One mechanical button
One yellow user LED
Access to all I/O lines

Relevant Resources:
ATtiny416 Xplained Nano – Design Documentation
ATtiny416 Xplained Nano
Xplained Pro Hardware Development Kit (HDK) User Guide
Official Weblink