rm more unused functions in tools.py

saqc/lib/tools.py

@@ -56,19 +56,6 @@ def squeezeSequence(value: Sequence[T]) -> Union[T, Sequence[T]]:
     return value
 
 
-def inferFrequency(data: pd.Series) -> pd.DateOffset:
-    return pd.tseries.frequencies.to_offset(pd.infer_freq(data.index))
-
-
-def offset2seconds(offset):
-    """Function returns total seconds upon "offset like input
-
-    :param offset:  offset string or pandas offset object.
-    """
-
-    return pd.Timedelta.total_seconds(pd.Timedelta(offset))
-
-
 def periodicMask(dtindex, season_start, season_end, include_bounds):
     """
     This function generates date-periodic/seasonal masks from an index passed.
@@ -186,18 +173,6 @@ def periodicMask(dtindex, season_start, season_end, include_bounds):
     return out
 
 
-def assertDictOfSeries(df: Any, argname: str = "arg") -> None:
-    if not isinstance(df, dios.DictOfSeries):
-        raise TypeError(
-            f"{argname} must be of type dios.DictOfSeries, {type(df)} was given"
-        )
-
-
-def assertSeries(srs: Any, argname: str = "arg") -> None:
-    if not isinstance(srs, pd.Series):
-        raise TypeError(f"{argname} must be of type pd.Series, {type(srs)} was given")
-
-
 @nb.jit(nopython=True, cache=True)
 def otherIndex(values: np.ndarray, start: int = 0) -> int:
     """