Fix: Object of type EnumMeta is not JSON serializable

[chrisbc]

from CDC:

has there been a change to toshiAPI that would break creation of GTs? I'm trying to run some disaggs and get an error
==========================


            mutation create_gt ($created:DateTime!, $agent_name:String!, $title:String!, $description:String!,
              $argument_lists: [KeyValueListPairInput]!, $subtask_type:TaskSubType!, $subtask_count:Int!,
              $model_type: ModelType!, $meta: [KeyValuePairInput]!) {
              create_general_task (
                input: {
                  created: $created
                  agent_name: $agent_name
                  title: $title
                  description: $description
                  argument_lists: $argument_lists
                  subtask_type: $subtask_type
                  subtask_count:$subtask_count
                  model_type: $model_type
                  meta:$meta
                })
                {
                  general_task {
                    id
                  }
                }
            }

and input variables:

{"created": "2024-06-20T03:49:49.068994+00:00", "agent_name": "chrisdc", "title": "OpenQuake Disaggregation Calcs", "description": "Disaggregation NSHM_v1.0.4", 
	"argument_lists": [{"k": "hazard_model_id", "v": "NSHM_v1.0.4"}, 
		{"k": "title", "v": "OpenQuake Disaggregation Calcs"}, 
		{"k": "description", "v": "Disaggregation NSHM_v1.0.4"}, 
		{"k": "task_type", "v": "DISAGG"}
	],
	"subtask_type": "OPENQUAKE_HAZARD",
	"subtask_count": 0,
	"model_type": "COMPOSITE", "meta": []}

gql.transport.exceptions.TransportQueryError: {'message': 'Object of type EnumMeta is not JSON serializable', 'locations': [{'line': 2, 'column': 3}], 'path': ['create_general_task']}