Function assertNumber

assertNumber(value: unknown, name: string): asserts value is number
Asserts that a value is a valid finite number.
Parameters
- value: unknown
  The value to check.
- name: string
  The name of the parameter/field being validated (for error reporting).
Returns asserts value is number
Throws
TypeError When the value is not a number or is NaN.
Example
```
assertNumber(chatId, "chatId");
```