[Home](./index.md) > [@contract-case/case-boundary](./case-boundary.md) > [BoundaryCrashMessage](./case-boundary.boundarycrashmessage.md)
## BoundaryCrashMessage class
Contains constants for the crash messages
**Signature:**
```typescript
export declare class BoundaryCrashMessage
```
## Properties
| Property | Modifiers | Type | Description |
| ---------------------------------------------------------------------------------- | ------------------------------------------------------ | -------------- | ----------- |
| [CRASH_MESSAGE_END](./case-boundary.boundarycrashmessage.crash_message_end.md) | static
readonly
| (not declared) | |
| [CRASH_MESSAGE_START](./case-boundary.boundarycrashmessage.crash_message_start.md) | static
readonly
| (not declared) | |