Email clients from Gmail when monday.com work is Done

import base64
from email.message import EmailMessage
from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build
from clickruntime import on_event, credentials, http, state

SIGNATURE = "Thanks,\nSam\nAcme Web Services"
ITEM = """query ($id: [ID!]) { items(ids: $id) { name column_values(ids: ["email"]) { text } } }"""
NOTE = """mutation ($item: ID!, $body: String!) { create_update(item_id: $item, body: $body) { id } }"""
def monday(query, **variables):
    resp = http.post("https://api.monday.com/v2", json={"query": query, "variables": variables},
                     headers={"Authorization": credentials.secret("MONDAY_API_TOKEN"), "API-Version": "2024-10"})
    resp.raise_for_status()
    return resp.json()["data"]

@on_event
def handle(event):
    body = event.json or {}
    if "challenge" in body:
        return {"challenge": body["challenge"]}
    ev = body.get("event", {})
    if ((ev.get("value") or {}).get("label") or {}).get("text") != "Done":
        return {"skipped": "not Done"}
    item_id = str(ev["pulseId"])
    sent = state.get("sent") or []
    if item_id in sent:
        return {"skipped": "already emailed"}
    item = monday(ITEM, id=[item_id])["items"][0]
    to = (item["column_values"][0]["text"] or "").split(" ")[0]
    if "@" not in to:
        return {"skipped": "no client email"}
    msg = EmailMessage()
    msg["To"], msg["Subject"] = to, f"Your request is complete: {item['name']}"
    msg.set_content(f"Hi,\n\nYour request \"{item['name']}\" is now complete.\n\n"
                    f"If anything doesn't look right, just reply to this email.\n\n{SIGNATURE}")
    gmail = build("gmail", "v1", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)
    gmail.users().messages().send(userId="me", body={"raw": base64.urlsafe_b64encode(msg.as_bytes()).decode()}).execute()
    monday(NOTE, item=item_id, body=f"Completion email sent to {to}")
    state.set("sent", (sent + [item_id])[-5000:])
    return {"emailed": to}