Equal expects the query's value to be want.

EqualOrNil expects the query to be unset or have value want.

FormatPath formats a PathStruct for display.

FormatRelativePath formats a path relative to base.

FormatValue formats v's value, or returns "no value" if v isn't present.

NotEqual expects the query to have a value other than wantNot.

NotPresent expects the query to not have a value set.

Predicate expects that the query has a value and the given predicate returns true on that value.

Present expects the query to have any value.

UnorderedEqual function is used to compare slices of type T in unordered way.

Validate expects validationFn to return no error on the query's value.

Validator is an interface representing a validation operation that could have latency.