NewError creates a new `Error` instance.

CodeConnectionLost means our connection was lost and all retry attempts failed.

CodeLockLost means that the lock token you have for a message has expired.

CodeTimeout means the service timed out during an operation.

CodeUnauthorizedAccess means the credentials provided are not valid for use with a particular entity, or have expired.

EventAdmin is used for operations in the azservicebus/admin.Client.

EventAuth is used when we're doing authentication/claims negotiation.

EventConn is used whenever we create a connection or any links (ie: receivers, senders).

EventReceiver represents operations that happen on Receivers.

EventSender represents operations that happen on Senders.

PeekLock will lock messages as they are received and can be settled using the Receiver's (Complete|Abandon|DeadLetter|Defer)Message functions.

ReceiveAndDelete will delete messages as they are received.

Error represents a Service Bus specific error.

NewWebSocketConnArgs are the arguments to the NewWebSocketConn function you pass if you want to enable websockets.

RetryOptions represent the options for retries.

Code is an error code, usable by consuming code to work with programatically.

ReceiveMode represents the lock style to use for a reciever - either `PeekLock` or `ReceiveAndDelete`.