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/** Generic top-level error class that other Earthstar errors inherit from. */export class EarthstarError extends Error {  constructor(message?: string) {    super(message || "");    this.name = "EarthstarError";  }}
/** Validation failed on a document, share address, author address, etc. */export class ValidationError extends EarthstarError {  constructor(message?: string) {    super(message || "Validation error");    this.name = "ValidationError";  }}
/** An IReplica or IReplicaDriver was used after close() was called on it. */export class ReplicaIsClosedError extends EarthstarError {  constructor(message?: string) {    super(      message || "a Replica or ReplicaDriver was used after being closed",    );    this.name = "ReplicaIsClosedError";  }}
/** An IReplica or IReplicaDriver was used after close() was called on it. */export class ReplicaCacheIsClosedError extends EarthstarError {  constructor(message?: string) {    super(      message || "a ReplicaCache was used after being closed",    );    this.name = "ReplicaCacheIsClosedError";  }}
/** A QueryFollower was used after close() was called on it. */export class QueryFollowerIsClosedError extends EarthstarError {  constructor(message?: string) {    super(message || "a QueryFollower was used after being closed");    this.name = "QueryFollowerIsClosedError";  }}
export class NotFoundError extends EarthstarError {  constructor(message?: string) {    super(message || "not found");    this.name = "NotFoundError";  }}
/** A pub URL is bad or the network is down */
export class NetworkError extends EarthstarError {  constructor(message?: string) {    super(message || "network error");    this.name = "NetworkError";  }}
export class TimeoutError extends EarthstarError {  constructor(message?: string) {    super(message || "timeout error");    this.name = "TimeoutError";  }}
/** A pub won't accept writes */
export class ConnectionRefusedError extends EarthstarError {  constructor(message?: string) {    super(message || "connection refused");    this.name = "ConnectionRefused";  }}
export class NotImplementedError extends EarthstarError {  constructor(message?: string) {    super(message || "not implemented yet");    this.name = "NotImplementedError";  }}
/** Check if any value is a subclass of EarthstarError (return true) or not (return false) */export function isErr<T>(x: T | Error): x is EarthstarError {  return x instanceof EarthstarError;}
/** Check if any value is a subclass of EarthstarError (return false) or not (return true) */export function notErr<T>(x: T | Error): x is T {  return !(x instanceof EarthstarError);}