Set position mode for a perpetual connector.
Args: account_name: Name of the account connector_name: Name of the perpetual connector position_mode: Position mode to set (HEDGE or ONEWAY)
Returns: Success message with status
Raises: HTTPException: 400 if not a perpetual connector or invalid position mode
Basic authentication header of the form Basic <encoded-value>, where <encoded-value> is the base64-encoded string username:password.
Request model for setting position mode on perpetual connectors
Position mode (HEDGE or ONEWAY)
Successful Response