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() => """${this.runtimeType} -
value: ${value.toString()},
unit: $unit,
dateFrom: $dateFrom,
dateTo: $dateTo,
dataType: $type,
platform: $platform,
deviceId: $deviceId,
sourceId: $sourceId,
sourceName: $sourceName""";