bach.DataFrame.variables
property variables
: Dict[bach.dataframe.DtypeNamePair, Hashable]
Get all variables for which values are set, which will be used when querying the database.
Note that there might also be variables defined earlier in self.base_node, that already have a value.
Those variables values will not be changed, unless they are listed here. To get an overview of all
variables on which the values in this DataFrame depend use get_all_defined_variables()