outputParameters property
OUTPUT parameters in format of Map.
Where Key is the name of the parameter. The parameters would only be present in case of synchrounous execution Note: Name of the system generated parameters are wrapped by backtick(`) to distinguish them from the user defined parameters.
The values for Object must be JSON objects. It can consist of num,
String, bool and null as well as Map and List values.
Implementation
core.Map<core.String, core.Object?>? outputParameters;