potency

var (
	ErrConflict       = errors.New("conflict")
	ErrMismatch       = errors.New("idempotency mismatch")
	ErrBodyMismatch   = fmt.Errorf("request body mismatch: %w", ErrMismatch)
	ErrMethodMismatch = fmt.Errorf("HTTP method mismatch: %w", ErrMismatch)
	ErrURLMismatch    = fmt.Errorf("URL mismatch: %w", ErrMismatch)
	ErrHeaderMismatch = fmt.Errorf("Header mismatch: %w", ErrMismatch)
	ErrInvalidKey     = errors.New("invalid Idempotency-Key")
)