def __init__(self, conn_id):
super().__init__(conn_id)<EOL>self.conn_id = conn_id<EOL>self.conn = None<EOL>
Create new connection to Salesforce and allows you to pull data out of SFDC and save it to a file.

You can then use that file with other Airflow operators to move the data into another data source.

:param conn_id: the name of the connection that has the parameters we need to connect to Salesforce.
    The connection should be type `http` and include a user's security token in the `Extras` field.
:type conn_id: str

.. note::
    For the HTTP connection type, you can include a
    JSON structure in the `Extras` field.
    We need a user's security token to connect to Salesforce.
    So we define it in the `Extras` field as:
        `{"security_token":"YOUR_SECURITY_TOKEN"}`