"""The SendGrid API Client.

def __init__(self, **opts):

"""

self.path = opts.get(

'path', os.path.abspath(os.path.dirname(__file__)))

self._apikey = opts.get('apikey', os.environ.get('SENDGRID_API_KEY'))

# Support v2 api_key naming

self._apikey = opts.get('api_key', self._apikey)

self._api_key = self._apikey

# Support impersonation of subusers

self._impersonate_subuser = opts.get('impersonate_subuser', None)

self.useragent = 'sendgrid/{0};python'.format(__version__)

self.host = opts.get('host', 'https://api.sendgrid.com')

self.version = __version__

headers = self._get_default_headers()

self.client = python_http_client.Client(host=self.host,

request_headers=headers,

version=3)

def _get_default_headers(self):

headers = {

"Authorization": 'Bearer {0}'.format(self._apikey),

"User-agent": self.useragent,

"Accept": 'application/json'

}

if self._impersonate_subuser:

headers['On-Behalf-Of'] = self._impersonate_subuser

return headers

def reset_request_headers(self):

self.client.request_headers = self._get_default_headers()

@property

def apikey(self):

"""The API key (also accessible as api_key)."""

return self._apikey

@apikey.setter

def apikey(self, value):

self._apikey = value

@property

def api_key(self):

"""The API key (also accessible as apikey)."""

return self._apikey

@api_key.setter

def api_key(self, value):

self._apikey = value

@property

def impersonate_subuser(self):

"""