Find the largest files in Google Drive

import datetime
from clickruntime import on_trigger, credentials, http, notify

TOP = 30

def drive(path, **params):
    resp = http.get(f"https://www.googleapis.com/drive/v3{path}", params=params,
                    headers={"Authorization": f"Bearer {credentials.connection('google', 'work')}"})
    resp.raise_for_status()
    return resp.json()

@on_trigger
def run(event):
    files = drive("/files", q="'me' in owners and trashed = false and mimeType != 'application/vnd.google-apps.folder'",
                  orderBy="quotaBytesUsed desc", pageSize=TOP,
                  fields="files(name,quotaBytesUsed,modifiedTime,webViewLink)")["files"]
    q = drive("/about", fields="storageQuota")["storageQuota"]
    gb = lambda b: int(b or 0) / 1024 ** 3
    lines = [f"{int(f['quotaBytesUsed']) / 1024 ** 2:8,.0f} MB  {f['name']}  (last changed {f['modifiedTime'][:10]})\n            {f['webViewLink']}"
             for f in files if int(f.get("quotaBytesUsed") or 0) > 0]
    trash = int(q.get("usageInDriveTrash") or 0) / 1024 ** 2
    limit = f"{gb(q['limit']):.0f} GB" if q.get("limit") else "unlimited"
    notify.email_me(f"Drive: {gb(q['usage']):.1f} of {limit} used, top {len(lines)} files",
                    "\n".join(lines) + f"\n\nTrash: {trash:,.0f} MB (empty it in Drive to reclaim)")
    return {"files": len(lines), "usage_gb": round(gb(q["usage"]), 2)}