TimelineTask constructor
Create a task. The task ID will be set by the system.
If parent
is provided, the parent's task ID is provided as argument
'parentId' when start is called. In DevTools, this argument will result
in this TimelineTask being linked to the parent
TimelineTask.
If filterKey
is provided, a property named filterKey
will be inserted
into the arguments of each event associated with this task. The
filterKey
will be set to the value of filterKey
.
Implementation
TimelineTask({TimelineTask parent, String filterKey})
: _parent = parent,
_filterKey = filterKey,
_taskId = _getNextAsyncId() {}