https://github.com/decred/dcrd/dcrec/secp256k1/v4
----------------------------------------------------------------
ISC License

Copyright (c) 2013-2017 The btcsuite developers
Copyright (c) 2015-2024 The Decred developers
Copyright (c) 2017 The Lightning Network Developers

Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above

package cmd

import (
	"context"
	"io"
	"sync"
	"time"

	"github.com/minio/madmin-go/v3"
)

// naughtyDisk wraps a POSIX disk and returns programmed errors
// specified by the developer. The purpose is to simulate errors
// that are hard to simulate in practice like DiskNotFound.
// Programmed errors are stored in errors field.
type naughtyDisk struct {
	// The real disk
	disk StorageAPI

	if err.HTTPStatusCode == http.StatusServiceUnavailable {
		// Set retry-after header to indicate user-agents to retry request after 120secs.
		// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Retry-After
		w.Header().Set(xhttp.RetryAfter, "120")
	}

	switch err.Code {
	case "InvalidRegion":