* Ensure that a variable is not undefined.
()
| 161 | * Ensure that a variable is not undefined. |
| 162 | */ |
| 163 | toBeDefined(): R; |
| 164 | /** |
| 165 | * When you don't care what a value is, you just want to |
| 166 | * ensure a value is false in a boolean context. |
no outgoing calls