data_imag# SolutionData.data_imag(expression=None, convert_to_SI=False)# Retrieve the imaginary part of the data for an expression. Parameters: expressionstr, optionalName of the expression. The default is None, in which case the active expression is used. convert_to_SIbool, optionalWhether to convert the data to the SI unit system. The default is False. Returns: listList of the imaginary data for the expression.