## transform()


Transform data with a given mode.


Usage


``` python
transform(
    data,
    mode="upper",
)
```


This function applies a transformation. Example::

    result = transform("hello", mode="upper")
    print(result)

You can also chain transformations::

    step1 = transform("hello", mode="upper")
    step2 = transform(step1, mode="reverse")


## Parameters


`data`  
The input data to transform.

`mode=``"upper"`  
Transformation mode (`"upper"`, `"lower"`, or `"reverse"`).


## Returns


`str`  
The transformed string.