DOC Added an example for the sklearn.datasets.get_data_home (scikit-l…

…earn#28290)

Co-authored-by: Arturo Amor <86408019+ArturoAmorQ@users.noreply.github.com>

sklearn/datasets/_base.py

@@ -67,6 +67,14 @@ def get_data_home(data_home=None) -> str:
     -------
     data_home: str
         The path to scikit-learn data directory.
+
+    Examples
+    --------
+    >>> import os
+    >>> from sklearn.datasets import get_data_home
+    >>> data_home_path = get_data_home()
+    >>> os.path.exists(data_home_path)
+    True
     """
     if data_home is None:
         data_home = environ.get("SCIKIT_LEARN_DATA", join("~", "scikit_learn_data"))