in src/trace/span/Span.ts [67:77]
constructor(options: SpanCtorOptions & { type: SpanType }) {
this.context = options.context;
this.operation = options.operation;
this.type = options.type;
if (options.id !== undefined) this.id = options.id;
if (options.parentId !== undefined) this.parentId = options.parentId;
if (options.peer) this.peer = options.peer;
if (options.layer) this.layer = options.layer;
if (options.component) this.component = options.component;
}