IRetryPolicy interface 
An abstraction that controls when the client attempts to reconnect and how many times it does so.
Methods
| next | Called after the transport loses the connection. | 
Method Details
		nextRetryDelayInMilliseconds(RetryContext)
	    
	Called after the transport loses the connection.
function nextRetryDelayInMilliseconds(retryContext: RetryContext): number | nullParameters
- retryContext
- RetryContext
Details related to the retry event to help determine how long to wait for the next retry.
Returns
number | null
The amount of time in milliseconds to wait before the next retry. null tells the client to stop retrying.