| Interface | Description | 
|---|---|
| Instrument | 
 Interface that must be implemented by instruments. 
 | 
| InstrumentationProvider | 
 Pluggable instrumentation providers (ex. 
 | 
| Class | Description | 
|---|---|
| AbstractInstrument | 
 Provides a base for creating instruments. 
 | 
| AbstractInstrumentationProvider | 
 Specialized instrumentation providers can extend this class to get basic
 provider state and capabilities. 
 | 
| Enum | Description | 
|---|---|
| InstrumentationLevel | 
 The instrumentation level can be used to indicate if and when an instrument will be
 automatically started and stopped. 
 | 
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