[DATALAD RUNCMD] create participants.json

=== Do not change lines below ===
{
 "chain": [],
 "cmd": "python3 code/bids_conversion/highspeed-bids-participants.py",
 "dsid": "94ae2510-f811-11ea-a3da-00e04c10078d",
 "exit": 0,
 "extra_inputs": [],
 "inputs": [],
 "outputs": [
  "participants.json"
 ],
 "pwd": "."
}
^^^ Do not change lines above ^^^