> Aztec.nr API reference, v6.0.0 (mainnet and testnet). Index: https://docs.aztec.network/aztec-nr-api/v6.0.0/llms.txt

# Struct LambdaExpression

Module: `std::meta::expr`

```rust
pub comptime struct LambdaExpression
{ /* private fields */ }
```

A lambda expression decomposed by [`Expr::as_lambda`](/aztec-nr-api/v6.0.0/std/primitive.Expr.md#as_lambda).

## Implementations

```rust
impl LambdaExpression
```

```rust
pub comptime fn parameters(self) -> [LambdaParameter]
```

The lambda parameters in source order.

```rust
pub comptime fn return_type(self) -> Option<UnresolvedType>
```

The optional return type annotation.

```rust
pub comptime fn body(self) -> Expr
```

The lambda body.