my test script was something like this (i've removed some of the parts
locally to move forward on parameterization a smidge):
# needs the prs to run
import mecode
# ender 3 plugged in with microusb cable
with mecode.G(
direct_write=True,
direct_write_mode='serial',
printer_port='/dev/ttyUSB0',
baudrate=115200
) as g:
g.break_and_continue() # abort whatever you are doing
g.auto_home() # calibrate the axes and home the toolhead
g.home() # move the toolhead to mecode's origin
g.finish_moves() # pause execution until you finish with that
g.park_toolhead() # now move away from it
# and disconnect
