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/**
* Generic error typing for EcmaScript errors
* Define `Error` here to avoid using `Error` from @types/node.
* Using the `node` version causes a compilation error when this code is used as an npm library if @types/node is not already imported.
*/
export declare class Error {
name?: string;
message: string;
stack?: string;
constructor(message?: string);
}
/**
* Used to exit the program and display a friendly message without the callstack.
*/
export declare class FatalError extends Error {
message: string;
innerError: Error | undefined;
static NAME: string;
constructor(message: string, innerError?: Error | undefined);
}
export declare function isError(possibleError: any): possibleError is Error;
export declare function showWarningOnce(message: string): void;
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