old_contents: from typing import Any, Dict
  
  from django.http import HttpRequest, HttpResponse
  
  from zerver.decorator import webhook_view
  from zerver.lib.request import REQ, has_request_variables
  from zerver.lib.response import json_success
  from zerver.lib.webhooks.common import check_send_webhook_message
  from zerver.models import UserProfile
  
  ERRBIT_TOPIC_TEMPLATE = "{project_name}"
  ERRBIT_MESSAGE_TEMPLATE = '[{error_class}]({error_url}): "{error_message}" occurred.'
  
  
  @webhook_view("Errbit")
  @has_request_variables
  def api_errbit_webhook(
      request: HttpRequest,
      user_profile: UserProfile,
      payload: Dict[str, Any] = REQ(argument_type="body"),
  ) -> HttpResponse:
      subject = get_subject(payload)
      body = get_body(payload)
      check_send_webhook_message(request, user_profile, subject, body)
      return json_success(request)
  
  
  def get_subject(payload: Dict[str, Any]) -> str:
      project = payload["problem"]["app_name"] + " / " + payload["problem"]["environment"]
      return ERRBIT_TOPIC_TEMPLATE.format(project_name=project)
  
  
  def get_body(payload: Dict[str, Any]) -> str:
      data = {
          "error_url": payload["problem"]["url"],
          "error_class": payload["problem"]["error_class"],
          "error_message": payload["problem"]["message"],
      }
      return ERRBIT_MESSAGE_TEMPLATE.format(**data)
  
new_contents: from django.http import HttpRequest, HttpResponse
  
  from zerver.decorator import webhook_view
  from zerver.lib.request import REQ, has_request_variables
  from zerver.lib.response import json_success
  from zerver.lib.validator import WildValue, check_string, to_wild_value
  from zerver.lib.webhooks.common import check_send_webhook_message
  from zerver.models import UserProfile
  
  ERRBIT_TOPIC_TEMPLATE = "{project_name}"
  ERRBIT_MESSAGE_TEMPLATE = '[{error_class}]({error_url}): "{error_message}" occurred.'
  
  
  @webhook_view("Errbit")
  @has_request_variables
  def api_errbit_webhook(
      request: HttpRequest,
      user_profile: UserProfile,
      payload: WildValue = REQ(argument_type="body", converter=to_wild_value),
  ) -> HttpResponse:
      subject = get_subject(payload)
      body = get_body(payload)
      check_send_webhook_message(request, user_profile, subject, body)
      return json_success(request)
  
  
  def get_subject(payload: WildValue) -> str:
      project = payload["problem"]["app_name"].tame(check_string)
      project += " / " + payload["problem"]["environment"].tame(check_string)
      return ERRBIT_TOPIC_TEMPLATE.format(project_name=project)
  
  
  def get_body(payload: WildValue) -> str:
      data = {
          "error_url": payload["problem"]["url"].tame(check_string),
          "error_class": payload["problem"]["error_class"].tame(check_string),
          "error_message": payload["problem"]["message"].tame(check_string),
      }
      return ERRBIT_MESSAGE_TEMPLATE.format(**data)
  
subject: Strengthen types using WildValue.