const tagName=typeInfo.metadata.elementName;if(tr.ui.b.isUnknownElementName(tagName)){throw new Error('Element not registered: '+tagName);}
return tagName;}
function createDiagnosticSpan(diagnostic,name,histogram){const tagName=findElementNameForDiagnostic(diagnostic);const span=document.createElement(tagName);if(span.build===undefined)throw new Error(tagName);span.build(diagnostic,name,histogram);return span;}