ENH(transformers): new transformer functions for casting types of variables

src/caoscrawler/default_transformers.yml

@@ -15,3 +15,15 @@ date_parse:
 datetime_parse:
   package: caoscrawler.transformer_functions
   function: datetime_parse
+cast_to_int:
+  package: caoscrawler.transformer_functions
+  function: cast_to_int
+cast_to_float:
+  package: caoscrawler.transformer_functions
+  function: cast_to_float
+cast_to_bool:
+  package: caoscrawler.transformer_functions
+  function: cast_to_bool
+cast_to_str:
+  package: caoscrawler.transformer_functions
+  function: cast_to_str

src/caoscrawler/transformer_functions.py

@@ -99,3 +99,19 @@ Parameters
     fmt = params.get("datetime_format", fmt_default)
     dt_str = datetime.datetime.strptime(in_value, fmt).strftime(fmt_default)
     return dt_str
+
+
+def cast_to_int(in_value: Any, params: dict) -> int:
+    return int(in_value)
+
+
+def cast_to_float(in_value: Any, params: dict) -> float:
+    return float(in_value)
+
+
+def cast_to_bool(in_value: Any, params: dict) -> bool:
+    return bool(in_value)
+
+
+def cast_to_str(in_value: Any, params: dict) -> str:
+    return str(in_value)