Function assert

assert(condition: boolean, message?: string): asserts condition
Asserts that a given condition is true, or raises an error otherwise.
Parameters
- condition: boolean
  The condition to test.
- Optionalmessage: string
  The error message to use if the condition is false.
Returns asserts condition

Throws
AssertionFailedError If the assertion failed.
- Defined in narrowing/assert.ts:51