>>51147976Not exactly, but it is kinda alluded to in the TCG and the manga (and Legends Arceus)
In the TCG, Technical Machines are literal machines, these bizarre cubes I guess the Poké Ball goes into
In the manga, during the ORAS arc the Dragon Ascend TM is shown as an ancient scroll, similar to how martial art techniques are documented, and this is kinda what Legends Arceus uses to represent moves in the game