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=== tests/cases/compiler/index.d.ts ===
export declare function foo({a}?: {
>foo : ({ a }?: { a?: string | undefined; } | undefined) => void
>a : string | undefined
a?: string;
>a : string | undefined
}): void;
export declare function foo2({a}: {
>foo2 : ({ a }: { a?: string | undefined;} | undefined, b: string) => void
>a : string | undefined
a?: string | undefined;
>a : string | undefined
} | undefined, b: string): void;
>b : string
export declare function foo3({a, b: {c}}: {
>foo3 : ({ a, b: { c } }: { a?: string | undefined; b?: { c?: string | undefined; } | undefined;} | undefined, b: string) => void
>a : string | undefined
>b : any
>c : string | undefined
a?: string | undefined;
>a : string | undefined
b?: {c?: string | undefined;} | undefined;
>b : { c?: string | undefined; } | undefined
>c : string | undefined
} | undefined, b: string): void;
>b : string
|
