Steps to Reproduce:

1. Set up Plaid integration
2. Set up Google Sheets integration
3. Add a few bank accounts
4. Run mintable fetch

Error:
2020-10-07T04:11:28.556Z [INFO] Fetched 1 sub-accounts and 14 transactions.
(node:11391) UnhandledPromiseRejectionWarning: TypeError: accounts.flat is not a function
at /usr/local/lib/node_modules/mintable/lib/scripts/fetch.js:104:26
at step (/usr/local/lib/node_modules/mintable/lib/scripts/fetch.js:44:23)
at Object.next (/usr/local/lib/node_modules/mintable/lib/scripts/fetch.js:25:53)
at fulfilled (/usr/local/lib/node_modules/mintable/lib/scripts/fetch.js:16:58)
at process._tickCallback (internal/process/next_tick.js:68:7)
(node:11391) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:11391) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

System Info:

arch: x64
platform: linux
os: v5.4.0-7642-generic
mintable: v2.0.1
node: v10.19.0