1package org.springframework.cloud.sleuth.log; 2 3import org.checkerframework.checker.nullness.qual.Nullable; 4import org.springframework.cloud.sleuth.Span; 5 6interface SpanLogger { 7 void logStartedSpan(@Nullable Span parent, Span span); 8 void logStoppedSpan(@Nullable Span parent, Span span); 9} 10