Expr.Shuttle (druid-processing 30.0.1 API)

Enclosing interface:

Expr
```
public static interface Expr.Shuttle
```
Mechanism to rewrite an Expr, implementing a Expr.Shuttle allows visiting all children of an Expr, and replacing them as desired.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`Expr`	`visit(Expr expr)`	Provide the `Expr.Shuttle` with an `Expr` to inspect and potentially rewrite.
`default List<Expr>`	`visitAll(List<Expr> exprs)`

- Method Detail
  - visit
```
Expr visit(Expr expr)
```
    Provide the Expr.Shuttle with an Expr to inspect and potentially rewrite.
  - visitAll
```
default List<Expr> visitAll(List<Expr> exprs)
```