dart:developer
 UserTag class 
  A UserTag can be used to group samples in the Observatory profiler.
   Constructors
  -  UserTag(String label) 
factory
   
   Properties
  -  label → String 
read-only
  -  Label of this.  
  -  hashCode → int 
read-only, inherited
  -  The hash code for this object. [...]  
  -  runtimeType → Type 
read-only, inherited
  -  A representation of the runtime type of the object.  
  
   Methods
  -  makeCurrent() → UserTag  
  -  Make this the current tag for the isolate. Returns the current tag before setting. 
  -  noSuchMethod(Invocation invocation) → dynamic  
inherited
  -  Invoked when a non-existent method or property is accessed. [...]  
  -  toString() → String  
inherited
  -  Returns a string representation of this object.  
  
   Operators
  -  operator ==(dynamic other) → bool  
inherited
  -  The equality operator. [...]  
  
   Static Properties
  -  defaultTag → UserTag 
read-only
  -  The default UserTag with label 'Default'.  
  
   Constants
  -  MAX_USER_TAGS → const int 
  -  The maximum number of UserTag instances that can be created by a program. 
 64