Chats

curl -sS -X POST https://api.relayapp.im/v1/chats \
  -H "Authorization: Bearer $RELAY_AGENT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "from":"echo.acme",
    "to":["alice"],
    "message": {
      "parts":[{"type":"text","value":"How can I help?"}]
    }
  }'