code: def experiment_parameter_metric_filter(request, project_id):
      query = """
  select distinct json_object_keys(parameters::json) as param
  from modelchimp_experiment ml
  where json_typeof(parameters::json) = 'object'
  and project_id = %s
  	"""
  
      query = query % (project_id,)
  
      result_raw = execute_query(query)
      return Response(result_raw, status=status.HTTP_200_OK)
  
file_path: modelchimp/modelchimp/views/api/project_dashboard.py
imports: from rest_framework import status
  from rest_framework.decorators import api_view, permission_classes
  from rest_framework.response import Response
  from modelchimp.utils.data_utils import execute_query
  from modelchimp.api_permissions import HasProjectMembership
  from rest_framework.permissions import IsAuthenticated
label_desc: Use image node_id 6 for calling a global function with example usage: experiment_parameter_metric_filter(request, project_id) and returns: Response