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option-t

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A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.

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declare const WRAPPER_NAME: "UnknownCausalError"; export declare class UnknownCausalError extends Error { name: typeof WRAPPER_NAME; constructor(cause: unknown); } export declare function wrapWithNewErrorIfCausalIsUnknown(e: unknown): Error; export {};