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Instead of:
```rust
expr().map_or_else(
);
```
use this:
```rust
if let Some(tmp) = expr() {
} else {
}
```
Instead of:
```rust
use this:
```rust
let Some(response) = expr() else {
};
```
Instead of:
```rust
use this:
```rust
if expr() {
} else {
}
```