public Builder metadata(TraceMetadata metadata) {
            this.metadata = metadata;
            return this;
        }
Sets this Builder's TraceMetadata.

@param metadata TraceMetadata for this TracingSymbolProvider's
                        TraceFile.
@return This Builder.
smithy-codegen-core/src/main/java/software/amazon/smithy/codegen/core/trace/TracingSymbolProvider.java