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  "messages": [
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      "id": "17199eb1b9ffdc7b",
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      "labelIds": [
        "UNREAD",
        "CATEGORY_UPDATES",
        "INBOX"
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      "payload": {
        "body": {
          "size": 0
        },
        "filename": "",
        "headers": [
          {
            "name": "Subject",
            "value": "Some subject"
          },
          {
            "name": "To",
            "value": "some@one.com"
          },
          {
            "name": "From",
            "value": "From Someone <some@email.com>"
          },
          {
            "name": "Date",
            "value": "Tue, 21 Apr 2020 00:27:16 +0100"
          },
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            "name": "Content-Type",
            "value": "multipart/alternative; boundary=\"--178AF9D9BD71E59F761931FE8\""
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        ],
        "mimeType": "multipart/alternative",
        "partId": "",
        "parts": [
          {
            "body": {
              "data": "PGh0bWw-PGJvZHk-U29tZSBodG1sPC9ib2R5PjwvaHRtbD4K"
            },
            "filename": "",
            "headers": [
              {
                "name": "Content-Type",
                "value": "text/html; charset=\"UTF-8\""
              },
              {
                "name": "Content-Transfer-Encoding",
                "value": "quoted-printable"
              }
            ],
            "mimeType": "text/html",
            "partId": "0"
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        ]
      },
      "sizeEstimate": 44423,
      "snippet": "Some snippet",
      "threadId": "17199eb1b9ffdc7b"
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