errors

var (
	// Stack adds stack trace to error, with message
	Stack = errors.New
	// Stackf adds stack trace to error, with format specifier
	Stackf = errors.Errorf
	// Wrap returns an error annotating err with a stack trace
	Wrap = errors.WithMessage
	// Wrapf returns an error annotating err with a stack trace
	Wrapf = errors.WithMessagef
	// NewHTTP creates a new error with the given id and code and detail
	NewHTTP = http.New
	// CodeHTTP gets the code of the given error
	CodeHTTP = http.Code
	// RegisterCode register a new error code with the given http.StatusCode,or overwriting any existing one
	RegisterCode = http.RegisterCode
)

var (
	// Errorf formats according to a format specifier and returns the string as a value that satisfies error
	Errorf = fmt.Errorf
	// Is reports whether any error in errs chain matches target
	Is = stderr.Is
	// As finds the first error in errs that matches target, and if one is found, sets target to that error value and returns true. Otherwise, it returns false.
	As = stderr.As
	// Unwrap unwraps the error, and if it is a wrapper, returns the next error in the chain.
	Unwrap = stderr.Unwrap
	// New creates a new error with the given string
	New = stderr.New
	// Join joins any number of errors into a single error.
	Join = stderr.Join
)

var (
	// Append is a helper function that will append more merr
	Append = merr.Append
	// ListFormatFunc is a helper function that will format the merr
	ListFormatFunc = merr.ListFormatFunc
)