All returns a filter that returns an index tha contains items that pass all the filters.

Any returns a filter that returns an index that contains items that pass any of the filters.

Eq returns a filter that will keep all the items that are equal to the current comparators.

Gt returns a filter that will keep all the items that are greater-than the current comparators.

Gte returns a filter that will keep all the items that are greater than or equal to the current comparators.

Limit returns a filter that returns the first n items.

Lt returns a filter that will keep all items that are less than the current comparators.

Lte returns a filter that will keep all the items that are less than or equal to the current comparators.

Make takes a Less function, a TestMaker function, and a Filler function and returns a Maker.

Native returns a filter that will sort an Index based on key order.

Ne returns a filter that will keep all the items that are not equal to the current comparators.

New returns a new Index that is populated with a copy of the passed-in objs.

Offset returns a filter that returns all but the first n items.

Resort sorts the index with the same function passed in to the most recent Sort filter.

Reverse returns a filter that will reverse an index.

Select returns a filter that picks all items that match the passed Test.

Subset returns a filter that will sort an index based on the lower bound test and the upper bound tests, which correspond to the gte and gt functions that SetComparators takes.

Index declares a struct field that can be indexed for a given Model, along with the function that should be used to sort things in key order.

Maker is used to hold reference functions for a specific index on a specific struct.

Filler takes a value from a query parameter and plugs it into the appropriate slot in the proper model for an index.

Filter is a function that takes an index, does stuff with it, and returns another index.

Less is a function that tests to see if the first item is less than the second item.

Tester is a function that tests to see if an item matches a condition.

TestMaker is a function that takes a reference object and spits out appropriate Tests for gte and gt, in that order.