text: # OpenCensus Library Trace Package
  This documentation serves to document the "look and feel" of the open source tags package. It 
  describes the key types and the overall behavior.
  
  ## Main APIs
  * [Span](Span.md)
  * [TraceConfig](TraceConfig.md)
  
  ## Utils
  * [gRPC integration](gRPC.md): document about how to instrument gRPC framework.
  * [HTTP integration](HTTP.md): document about how to instrument http frameworks.
  * [Sampling logic](Sampling.md): document about how sampling works.
  * [Log correlation](LogCorrelation.md): specification for a feature for inserting tracing data into log entries.
  