class_docstr: Find the maximum value in a column.
  
  This aggregation can be applied to columns containing :class:`.Date`,
  :class:`.DateTime`, or :class:`.Number` data.
  
  :param column_name:
      The name of the column to be searched.
code: def validate(self, table):
      column = table.columns[self._column_name]
  
      if not isinstance(
          column.data_type, (Date, DateTime, Number, TimeDelta)
      ):
          raise DataTypeError(
              "Min can only be applied to columns containing DateTime, Date or Number data."
          )
  
file_path: agate/agate/aggregations/max.py
imports: from agate.aggregations.base import Aggregation
  from agate.data_types import Date, DateTime, Number, TimeDelta
  from agate.exceptions import DataTypeError
label_desc: Use image node_id 3 for calling the Max obj's underlying member method code with example usage: obj.validate(table) without return types