new PlainTextSaslAuthenticator(username, password, authzidopt)
    Creates a new instance of PlainTextSaslAuthenticator.
    Parameters:
| Name | Type | Attributes | Description | 
|---|---|---|---|
username | 
            
            string | Username to log into the server. | |
password | 
            
            string | Password for the user. | |
authzid | 
            
            string | 
                
                    <optional> | 
            
            
            Optional id | 
Methods
evaluateChallenge(challenge) → {Object}
    Evaluates the challenge from the server and returns appropriate response.
    Parameters:
| Name | Type | Description | 
|---|---|---|
challenge | 
            
            String | Challenge string presented by the server. | 
Returns:
    A Promise that resolves to a valid sasl response object.
- Type
 - Object