Dropping Index on collection

Any index on collection may be dropped via drop action.

For example: 

dropping index with specified name :                   `drop("indexName")`
dropping index on given collection keys :

drop(index("foo" -> Order.Ascending, "boo" -> Order.Descending))

Operations:

Drop index with name

Drop index with keys

Total for specification CollectionDropIndexSpec
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Results	2 examples, 0 failure, 0 error