29   Status Read(size_t n, Slice* result, char* scratch) override {  in Read()  function
32     return target_->Read(n, io_opts, result, scratch, &dbg);  in Read()
59   Status Read(uint64_t offset, size_t n, Slice* result,  in Read()  function
63     return target_->Read(offset, n, io_opts, result, scratch, &dbg);  in Read()
225   Status Read(uint64_t offset, size_t n, Slice* result,  in Read()  function
229     return target_->Read(offset, n, io_opts, result, scratch, &dbg);  in Read()
620   IOStatus Read(size_t n, const IOOptions& /*options*/, Slice* result,  in Read()  function
622     return status_to_io_status(target_->Read(n, result, scratch));  in Read()
652   IOStatus Read(uint64_t offset, size_t n, const IOOptions& /*options*/,  in Read()  function
655     return status_to_io_status(target_->Read(offset, n, result, scratch));  in Read()
812   IOStatus Read(uint64_t offset, size_t n, const IOOptions& /*options*/,  in Read()  function
815     return status_to_io_status(target_->Read(offset, n, result, scratch));  in Read()