parameters: (self, format: str)
return_statement: return self._return_or_inplace(
              str_cast.istimestamp(self._column, format)
          )
docstring: Check whether all characters in each string can be converted to
          a timestamp using the given format.
  
          Returns
          -------
          Series or Index of bool
              Series or Index of boolean values with the same
              length as the original Series/Index.
  
          Examples
          --------
          >>> import cudf
          >>> s = cudf.Series(["20201101", "192011", "18200111", "2120-11-01"])
          >>> s.str.istimestamp("%Y%m%d")
          0     True
          1    False
          2     True
          3    False
          dtype: bool
docstring_summary: Check whether all characters in each string can be converted to
          a timestamp using the given format.
docstring_tokens: Check whether all characters in each string can be converted to a timestamp using the given format .
function: def istimestamp(self, format: str) -> SeriesOrIndex:
          """
          Check whether all characters in each string can be converted to
          a timestamp using the given format.
  
          Returns
          -------
          Series or Index of bool
              Series or Index of boolean values with the same
              length as the original Series/Index.
  
          Examples
          --------
          >>> import cudf
          >>> s = cudf.Series(["20201101", "192011", "18200111", "2120-11-01"])
          >>> s.str.istimestamp("%Y%m%d")
          0     True
          1    False
          2     True
          3    False
          dtype: bool
          """
          return self._return_or_inplace(
              str_cast.istimestamp(self._column, format)
          )
function_tokens: def istimestamp ( self , format : str ) -> SeriesOrIndex : return self . _return_or_inplace ( str_cast . istimestamp ( self . _column , format ) )