docs: def is_decimal(self):
          """Determine if a data record is of the type float."""
          dt = DATA_TYPES['decimal']
          if type(self.data) in dt['type']:
              self.type = 'DECIMAL'
              num_split = str(self.data).split('.', 1)
              self.len = len(num_split[0])
              self.len_decimal = len(num_split[1])
              return True