prast

type Prast interface {
	// FilterByType filters all AST nodes to only include those with the
	// given nodeType (and those nodes' descendents).
	FilterByType(nodeType reflect.Type)
	// FilterByName filters all AST nodes to only include those
	// with the given name (and those nodes' descendents).
	FilterByName(name string)
	// Print prints out the current state that Prast has inspected.
	Print()
	String() string
}