async function connect(requestLogin, requestWebView) {
  const { username, password } = await requestLogin();
  // ...
  return newState;
}
async function collect(state = {}, logger) {
  // ...
  return { activities, state: newState };
}
async function disconnect() {
  // ...
  return newState;
}

{
  id, // a string that uniquely represents this activity
  datetime, // a javascript Date object that represents the start of the activity
  durationHours, // a floating point that represents the duration of the activity in decimal hours
  distanceKilometers, // a floating point that represents the amount of kilometers traveled
  activityType: ACTIVITY_TYPE_TRANSPORTATION,
  transportationMode, // a variable (from definitions.js) that represents the transportation mode
  carrier, // (optional) a string that represents the transportation company
  departureAirportCode, // (for plane travel) a string that represents the departure airport, IATA code
  destinationAirportCode, // (for plane travel) a string that represents the final destination airport, IATA code
  departureStation, // (for other travel types) a string that represents the original starting point
  destinationStation, // (for other travel types) a string that represents the final destination
}

{
  id, // a string that uniquely represents this activity
  datetime, // a javascript Date object that represents the start of the activity
  durationHours, // an integer that represents the duration of the activity
  activityType: ACTIVITY_TYPE_ELECTRICITY,
  energyWattHours, // a float that represents the total energy used
  hourlyEnergyWattHours, // (optional) an array of 24 floats that represent the hourly metering values
  locationLon, // the location of the electricity consumption
  locationLat, // the location of the electricity consumption
}

{
  id, // a string that uniquely represents this activity
  datetime, // a javascript Date object that represents the start of the activity
  label, // a string that represents the transaction
  merchantDisplayName, // (optional) a string that represents the merchant where the purchase was made
  purchaseCategory, // a string that represents the category of the purchase. Categories can be found here: https://github.com/tmrowco/tmrowapp-contrib/blob/master/definitions.js
  costAmount, // a floating point that represents the amount of the purchase
  costCurrency, // a string that represents the currency in which the currency was made
  bankDisplayName, // (required for integrations with banks) a string that represents the banks' name
  bankIdentifier, // (required for integrations with banks) a string that uniquely represents the bank.
}