def __init__(self, code: str, model: QAbstractTableModel,
index: QModelIndex, description: str):
"""
:param code: The main grid object
:param model: Model of the grid object
:param index: Index of the cell for which the code is set
:param description: Command description
"""
super().__init__(description)
self.description = description
self.model = model
self.indices = [index]
self.old_codes = [model.code(index)]
self.new_codes = [code]
