Can you mega evolve Mewtwo in Pokemon GO?

Pokemon GO players once again have a chance to obtain Mewtwo and are currently running to local raid spots to challenge its new Shadow Raid.

In-Progress Pokemon Evolutions — #150 Mega X & Y - Mewtwo was created by a

Mega X Mewtwo (Pokémon GO): Stats, Moves, Counters, Evolution

Mega Mewtwo forms still missing from Pokemon Go despite two-year-old teasers - Dexerto

Pokemon Let's Go, Mega Evolutions - Mega Stones & How To Use

Mega Mewtwo forms still missing from Pokemon Go despite two-year-old teasers - Dexerto

Pokémon Let's Go' Mega Evolution: When and Where to Get Mega Stones

How can Mewtwo mega evolve itself? - PokéBase Pokémon Answers

Here are Pokemon X/Y's evolved starters, and Mewtwo's other 'Mega' form