Can someone please provide an example request to edit the power management options of a host?

Ie. the options contained in host['power_management']['agents']['agent'][0]['options']['option'] and host['power_management']['options']['option']

Currently I have:

"option": [

  {

    "name": "power_wait",

    "value": "4"

  },

  {

    "name": "lanplus",

    "value": ""

  }

]

I need to change the value of "lanplus" from nothing to 1 or "on".

I have tried replacing the entire host['power_management']['options'] set and the host['power_management']['agents'] set with PUT requests to the API endpoint for the host, with no change or errors - I just get a 200 OK response with the details of the host as if I had just done a GET request.

Br.

Emil