ngMessagesInclude is a directive with the purpose to import existing ngMessage template
code from a remote template and place the downloaded template code into the exact spot
that the ngMessagesInclude directive is placed within the ngMessages container. This allows
for a series of pre-defined messages to be reused and also allows for the developer to
determine what messages are overridden due to the placement of the ngMessagesInclude directive.
<!-- using attribute directives -->
<ANY ng-messages="expression" role="alert">
  <ANY ng-messages-include="remoteTplString">...</ANY>
</ANY>
<!-- or by using element directives -->
<ng-messages for="expression" role="alert">
  <ng-messages-include src="expressionValue1">...</ng-messages-include>
</ng-messages>
Click here to learn more about ngMessages and ngMessage.
| Param | Type | Details | 
|---|---|---|
| ngMessagesInclude | src | string | 
         a string value corresponding to the remote template.  |