Opsgenie provider [documentation hosted here|
https://registry.terraform.io/providers/opsgenie/opsgenie/latest/docs/resources/api_integration] suggests we should be able to create Webhook integration using the resource opsgenie_api_integration.

This example should create a webhook integration.

resource "opsgenie_api_integration" "test3" {
  name  = "webhook-int"
  type  = "Webhook"

  responders {
    type = "user"
    id   = "x1x2x3-4x5x6x7-x8x9x0-c1c2c3"
  }
  enabled                 = false
  allow_write_access      = false
  suppress_notifications  = true
  webhook_url             = "https://api.example.com/v1"
  headers = {
    header1 = value1
  }
} 

Instead, it throws a status code 422 error with the message [addAlertDetails] must not be null,  *  I have determined the missing parameter *addAlertDetails takes a boolean as its value please can you confirm if this field is being passed by the opsgenie terraform provider?