code: def test_pat015_patch_insert():
      p = Patch()
      p.insert(1, "inserted")
  
      data = patch_to_dict(p)
      assert data["operations"][0] == {
          "operation": "Insert",
          "location": [],
          "params": {"index": 1, "value": "inserted"},
      }
  
imports: import json
  import pytest
  from dash import Patch
  from dash._utils import to_json
label_desc: Use image node_id 16 for calling a global function with example usage: test_pat015_patch_insert() without return types