# string_IsSpace
Returns true if the given `string` is whitespace.

## Arguments
- str (string): the string to check.

## Returns
isAlpha (bool): returns `true` if `string` is whitespace, otherwise `false`.

## Example
### Ground
```python
call !string_IsAlpha "    " &isAlpha
println $isAlpha # true

call !string_IsAlpha " " &isAlpha
println $isAlpha # true

call !string_IsAlpha "abc_def" &isAlpha
println $isAlpha # false

call !string_IsAlpha "   a" &isAlpha
println $isAlpha # false
```