[0.16.5] v.size() == 2: method specification invalid. Should be api.method

[bitphage]

    steem = Steem(nodes=conf['nodes_new'], keys=conf['keys'])

    base_name = 'foo'
    passwd = 'pass'
    creator = 'cyberfounder'

    for i in range(1, 10):
        steem.commit.create_account(base_name + str(i), password=passwd, creator=creator)

b'{"jsonrpc": "2.0", "id": 0, "method": "get_accounts", "params": [["cyberfounder"]]}'
Traceback (most recent call last):
  File "./create_accounts.py", line 53, in <module>
    main()
  File "./create_accounts.py", line 50, in main
    steem.commit.create_account(base_name + str(i), password=passwd, creator=creator)
  File "/home/vvk/devel/golos/golos-python/steem/commit.py", line 567, in create_account
    return self.finalizeOp(op, creator, "active")
  File "/home/vvk/devel/golos/golos-python/steem/commit.py", line 125, in finalizeOp
    tx.appendSigner(account, permission)
  File "/home/vvk/devel/golos/golos-python/steem/transactionbuilder.py", line 46, in appendSigner
    account = Account(account, steemd_instance=self.steemd)
  File "/home/vvk/devel/golos/golos-python/steem/account.py", line 34, in __init__
    self.refresh()
  File "/home/vvk/devel/golos/golos-python/steem/account.py", line 37, in refresh
    account = self.steemd.get_account(self.name)
  File "/home/vvk/devel/golos/golos-python/steem/steemd.py", line 157, in get_account
    return first(self.exec('get_accounts', [account]))
  File "/home/vvk/devel/golos/golos-python/steembase/http_client.py", line 187, in exec
    return_with_args=return_with_args)
  File "/home/vvk/devel/golos/golos-python/steembase/http_client.py", line 207, in _return
    raise RPCError(error_message)
steembase.exceptions.RPCError: Assert Exception (10)
v.size() == 2: method specification invalid. Should be api.method