parameters: (self, account, fields)
return_statement: return account
docstring: Fills the empty fields of an account.
docstring_summary: Fills the empty fields of an account.
docstring_tokens: Fills the empty fields of an account .
function: def fill_account(self, account, fields):  # pylint: disable=no-self-use
          """
          Fills the empty fields of an account.
          """
          if 'iban' in fields and empty(account.iban):
              account.iban = 'Filled Iban'
          return account
function_tokens: def fill_account ( self , account , fields ) : # pylint: disable=no-self-use if 'iban' in fields and empty ( account . iban ) : account . iban = 'Filled Iban' return account