chore: import upstream snapshot with attribution

fun_text_processing/inverse_text_normalization/ja/utils.py

@@ -0,0 +1,33 @@
+import os
+from typing import Union
+
+import inflect
+
+_inflect = inflect.engine()
+
+
+def num_to_word(x: Union[str, int]):
+    """
+    converts integer to spoken representation
+
+    Args
+        x: integer
+
+    Returns: spoken representation
+    """
+    if isinstance(x, int):
+        x = str(x)
+        x = _inflect.number_to_words(str(x)).replace("-", " ").replace(",", "")
+    return x
+
+
+def get_abs_path(rel_path):
+    """
+    Get absolute path
+
+    Args:
+        rel_path: relative path to this file
+
+    Returns absolute path
+    """
+    return os.path.dirname(os.path.abspath(__file__)) + "/" + rel_path