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declare module 'https://cdn.skypack.dev/negotiated@1.0.2' {  export function mediaTypes(h?: string|null): IterableIterator<{ type: string, params: string, weight: number, extensions: string }>  export function charsets(h?: string|null): IterableIterator<{ charset: string, weight: number }>  export function encodings(h?: string|null): IterableIterator<{ encoding: string, weight: number }>  export function languages(h?: string|null): IterableIterator<{ language: string, weight: number }>  export function transferEncodings(h?: string|null): IterableIterator<{ encoding: string, params: string, weight: number }>  export function parameters(p?: string|null): IterableIterator<{ key: string, value: string }>}