How to use the pyeapi.connect function in pyeapi

def wrapper(self, protocol):
        api = pyeapi.connect(transport="http", host=protocol.host, port=protocol.conf["http"],
                             username=protocol.username, password=protocol.password, return_node=True)
        test(self, protocol, api)

def test_unauthorized_user(self):
        error_string = ('Unauthorized. Unable to authenticate user: Bad'
                        ' username/password combination')
        for dut in self.duts:
            temp_node = pyeapi.connect(host=dut.settings['host'],
                                       transport=dut.settings['transport'],
                                       username='wrong', password='nope',
                                       port=dut.settings['port'],
                                       return_node=True)
            try:
                temp_node.run_commands('show version')
            except pyeapi.eapilib.ConnectionError as err:
                self.assertEqual(err.message, error_string)

def setUp(self):
        conf = TEST_SWITCHES[self.switch_name]
        self.node = pyeapi.connect(transport="http", host="127.0.0.1", port=conf["http"],
                                   username="root", password="root", return_node=True)
        self.connection = self.node.connection

def _connect(self):
        self.node = pyeapi.connect(host=self.switch_descriptor.hostname,
                                   username=self.switch_descriptor.username,
                                   password=self.switch_descriptor.password,
                                   port=self.switch_descriptor.port,
                                   transport=self.transport,
                                   return_node=True,
                                   timeout=default_command_timeout)

'''  
  module = AnsibleModule(
      argument_spec=dict(
          host=dict(required=True),
          port=dict(default=443, required=False),
          username=dict(required=True),
          password=dict(required=True),
          transport=dict(default="https", required=False),
          vlan_name=dict(required=True),
          vlan_id=dict(required=True)
          #vlan_state=dict(default='present',required=False),
      ),
      supports_check_mode=True
  )

  connection=pyeapi.connect(host=module.params['host'],username=module.params['username'],password=module.params['password'], port=module.params['port'],transport=module.params['transport'])
  switch=pyeapi.client.Node(connection)
  network_admin = AristaNetworkAdmin(switch)
  vlan=Vlan(module.params['vlan_id'],module.params['vlan_name'])

  with open("/tmp/eapi.log","w+") as f:
    if network_admin.vlan_exists(vlan):
      f.write("Exists: " + str(network_admin.vlan_exists(vlan)) + "\n")
      f.write("DEBUG: vlan %s with id %s exists \n" %(vlan.name,vlan.vlan_id))
      module.exit_json(msg="vlan exists", changed=False)
    else:
      f.write("DEBUG: vlan %s with id %s does not exist or has a different name \n" %(vlan.name,vlan.vlan_id))

    if module.check_mode:
      if network_admin.vlan_exists(vlan):
        f.write("Check Mode: Vlan already exists\n")
        module.exit_json(msg="Vlan already exits",changed=False)

def __init__(self, host, username, password, transport="http", timeout=60, **kwargs):
        super(EOSDevice, self).__init__(host, username, password, vendor="arista", device_type="arista_eos_eapi")
        self.transport = transport
        self.timeout = timeout
        self.connection = eos_connect(transport, host=host, username=username, password=password, timeout=timeout)
        self.native = EOSNative(self.connection)

#!/usr/bin/env python

import pyeapi

connection = pyeapi.connect(host='192.168.1.16')
output = connection.execute(['enable', 'show version'])

print 'My system MAC address is', output['result'][1]['systemMacAddress']