SystemData interface 
Provides details about resource creation and update time
Properties
| created | The timestamp of resource creation (UTC) NOTE: This property will not be serialized. It can only be populated by the server. | 
| created | A string identifier for the identity that created the resource NOTE: This property will not be serialized. It can only be populated by the server. | 
| created | The type of identity that created the resource: user, application, managedIdentity NOTE: This property will not be serialized. It can only be populated by the server. | 
| last | The timestamp of resource last modification (UTC) NOTE: This property will not be serialized. It can only be populated by the server. | 
| last | A string identifier for the identity that last modified the resource NOTE: This property will not be serialized. It can only be populated by the server. | 
| last | The type of identity that last modified the resource: user, application, managedIdentity NOTE: This property will not be serialized. It can only be populated by the server. | 
Property Details
		createdAt
	 
	The timestamp of resource creation (UTC) NOTE: This property will not be serialized. It can only be populated by the server.
createdAt?: DateProperty Value
Date
		createdBy
	 
	A string identifier for the identity that created the resource NOTE: This property will not be serialized. It can only be populated by the server.
createdBy?: stringProperty Value
string
		createdByType
	 
	The type of identity that created the resource: user, application, managedIdentity NOTE: This property will not be serialized. It can only be populated by the server.
createdByType?: stringProperty Value
string
		lastModifiedAt
	  
	The timestamp of resource last modification (UTC) NOTE: This property will not be serialized. It can only be populated by the server.
lastModifiedAt?: DateProperty Value
Date
		lastModifiedBy
	  
	A string identifier for the identity that last modified the resource NOTE: This property will not be serialized. It can only be populated by the server.
lastModifiedBy?: stringProperty Value
string
		lastModifiedByType
	  
	The type of identity that last modified the resource: user, application, managedIdentity NOTE: This property will not be serialized. It can only be populated by the server.
lastModifiedByType?: stringProperty Value
string