toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() {
return '''
tickets: ${tickets},
initialLoading: ${initialLoading},
now: ${now},
isChange: ${isChange},
range: ${range},
sellQuickItemsDesignations: ${sellQuickItemsDesignations},
selected: ${selected},
selectedNoStock: ${selectedNoStock},
selectedByTimeFrame: ${selectedByTimeFrame},
timeFrame: ${timeFrame}
''';
}