Amend Order

curl --request POST \
  --url https://api.sequencemkts.com/v1/parent_orders/{parent_id}/amend \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "new_qty_1e8": 123,
  "new_constraints": {
    "max_price_1e9": 95000000000000,
    "urgency": "UNSPECIFIED",
    "horizon_ms": 123,
    "participation_limit_bps": 123
  }
}
'

{
  "parent_id": "<string>",
  "status": "<string>"
}