Navigates to atom value.

Takes a compiled path that needs late-bound params and supplies it with
an array of params and a position in the array from which to begin reading
params. The return value is an executable selector.

Version of replace-in that takes in a path precompiled with comp-paths

Version of select that takes in a path pre-compiled with comp-paths

Version of select-first that takes in a path pre-compiled with comp-paths

Version of select-one that takes in a path pre-compiled with comp-paths

Version of select-one! that takes in a path pre-compiled with comp-paths

Version of setval that takes in a path precompiled with comp-paths

Version of transform that takes in a path pre-compiled with comp-paths

Takes in alternating cond-path path cond-path path...
Tests the structure if selecting with cond-path returns anything.
If so, it uses the following path for this portion of the navigation.
Otherwise, it tries the next cond-path. If nothing matches, then the structure
is not selected.

The input paths may be parameterized, in which case the result of cond-path
will be parameterized in the order of which the parameterized navigators
were declared.

Navigates to the provided path and then to the current element. This can be used
to implement post-order traversal.

Navigates to every continuous subsequence of elements matching `pred`

Navigates to a view of the current sequence that only contains elements that
match the given path. An element matches the selector path if calling select
on that element with the path yields anything other than an empty sequence.

 The input path may be parameterized, in which case the result of filterer
 will be parameterized in the order of which the parameterized selectors
 were declared.

Like cond-path, but with if semantics.

Navigates to the specified key, navigating to nil if it does not exist.

A path that branches on multiple paths. For updates,
applies updates to the paths in order.

Navigates to the key only if it exists in the map.

Mandate that operations that do inline path factoring and compilation
(select/transform/setval/replace-in/path/etc.) must succeed in 
factoring the path into static and dynamic portions. If not, an
error will be thrown and the reasons for not being able to factor
will be printed. Defaults to false, and `(must-cache-paths! false)`
can be used to turn this feature off.

Reasons why it may not be able to factor a path include using
a local symbol, special form, or regular function invocation
where a navigator is expected.

Navigates to the provided val if the structure is nil. Otherwise it stays
navigated at the structure.

Keeps the element only if it matches the supplied predicate. This is the
late-bound parameterized version of using a function directly in a path.

Adds an external value to the collected vals. Useful when additional arguments
are required to the transform function that would otherwise require partial
application or a wrapper function.

e.g., incrementing val at path [:a :b] by 3:
(transform [:a :b (putval 3)] + some-map)

Similar to transform, except returns a pair of [transformed-structure sequence-of-user-ret].
The transform-fn in this case is expected to return [ret user-ret]. ret is
what's used to transform the data structure, while user-ret will be added to the user-ret sequence
in the final return. replace-in is useful for situations where you need to know the specific values
of what was transformed in the data structure.

Navigates to and returns a sequence of all the elements specified by the path.

Returns first element found. Not any more efficient than select, just a convenience

Returns exactly one element, throws exception if zero or multiple elements found

Like select, but returns either one element or nil. Throws exception if multiple elements found

Filters the current value based on whether a path finds anything.
e.g. (selected? :vals ALL even?) keeps the current element only if an
even number exists for the :vals key.

The input path may be parameterized, in which case the result of selected?
will be parameterized in the order of which the parameterized navigators
were declared.

Navigates to each value specified by the path and replaces it by val

Navigates to the subsequence bound by the indexes start (inclusive)
and end (exclusive)

Uses start-fn and end-fn to determine the bounds of the subsequence
to select when navigating. Each function takes in the structure as input.

Stays navigated at the current point. Essentially a no-op navigator.

Navigates to the current element and then navigates via the provided path.
This can be used to implement pre-order traversal.

Stops navigation at this point. For selection returns nothing and for 
transformation returns the structure unchanged

Navigates to the specified submap (using select-keys).
In a transform, that submap in the original map is changed to the new
value of the submap.

Navigates to a sequence that contains the results of (select ...),
but is a view to the original structure that can be transformed.

Requires that the input navigators will walk the structure's
children in the same order when executed on "select" and then
"transform".

Navigates to the specified subset (by taking an intersection).
In a transform, that subset in the original set is changed to the
new value of the subset.

Navigates to each value specified by the path and replaces it by the result of running
the transform-fn on it

Navigates to a view of the current value by transforming it with the
specified path and update-fn.

The input path may be parameterized, in which case the result of transformed
will be parameterized in the order of which the parameterized navigators
were declared.

Navigates to result of running `afn` on the currently navigated value.