Get information about the selected Ad Exchange account.
get(accountId)
  Get information about the selected Ad Exchange account.
Args:
  accountId: string, Account to get information about. Tip: 'myaccount' is a valid ID. (required)
Returns:
  An object of the form:
    {
    "kind": "adexchangeseller#account", # Kind of resource this is, in this case adexchangeseller#account.
    "id": "A String", # Unique identifier of this account.
    "name": "A String", # Name of this account.
  }