Function assert

assert(condition: boolean, message?: string): asserts condition
Asserts that a condition is true

断言条件为真
Parameters
- condition: boolean
  The condition to assert. 要断言的条件
- Optionalmessage: string
  The message to display if the condition is false. 如果条件为假时显示的消息
Returns asserts condition
Throws
If the condition is false. 如果条件为假
Example
```
assert(true) // no throw
assert(false, 'custom message') // throws Error: custom message
```
- Defined in src/util/assert.ts:24