| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| google.golang.org/grpc/internal/grpcsync | Package grpcsync implements additional synchronization primitives built upon the sync package. |
| google.golang.org/grpc/internal/testutils | Package testutils contains testing helpers. |
| google.golang.org/grpc/xds/internal/xdsclient | Package xdsclient implements a full fledged gRPC client for the xDS API used by the xds resolver and balancer implementations. |
| google.golang.org/grpc/xds/internal/xdsclient/bootstrap | |
| google.golang.org/grpc/xds/internal/xdsclient/load | Package load provides functionality to record and maintain load data. |
| google.golang.org/grpc/xds/internal/xdsclient/xdsresource | Package xdsresource implements the xDS data model layer. |