Configurable Array Set information in the Configuration Bulk Add to Transaction REST API request.

Summary: What is required to include Configurable Array Set information in the Configuration Bulk Add to Transaction REST API request?

For instance, do I need to include the Index or RowKey in the below example array set? 

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Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):

ExampleArray

Select Quantity Description

True 5 exampleItem1

False 0 exampleItem2

True 2 exampleItem3

,"_setExampleArray":{

"items": [

{

"_index": 0,

"select_ExampleArray" : true,

"quantity_ExampleArray" : 5,

"description_ExampleArray" : "exampleItem1"

},

{

"_index": 2,

"select_ExampleArray" : true,

"quantity_ExampleArray" : 2,

"description_ExampleArray" : "exampleItem3"

}

]

}