|  | beginCompilationUnit(void) | 
|  | beginMetadataStar(void) | 
|  | endMetadataStar(0) | 
|  | beginTopLevelMember(void) | 
|  | beginTopLevelMethod(, null, null) | 
|  | handleVoidKeyword(void) | 
|  | handleIdentifier(f, topLevelFunctionDeclaration) | 
|  | handleNoTypeVariables(() | 
|  | beginFormalParameters((, MemberKind.TopLevelMethod) | 
|  | beginMetadataStar(dynamic) | 
|  | endMetadataStar(0) | 
|  | beginFormalParameter(dynamic, MemberKind.TopLevelMethod, null, null, null) | 
|  | handleIdentifier(dynamic, typeReference) | 
|  | handleNoTypeArguments(e) | 
|  | handleType(dynamic, null) | 
|  | handleIdentifier(e, formalParameterDeclaration) | 
|  | handleFormalParameterWithoutValue()) | 
|  | endFormalParameter(null, null, null, e, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod) | 
|  | endFormalParameters(1, (, ), MemberKind.TopLevelMethod) | 
|  | handleAsyncModifier(null, null) | 
|  | beginBlockFunctionBody({) | 
|  | handleIdentifier(e, expression) | 
|  | handleNoTypeArguments(!) | 
|  | handleNoArguments(!) | 
|  | handleSend(e, e) | 
|  | handleNonNullAssertExpression(!) | 
|  | handleNoTypeArguments(() | 
|  | beginArguments(() | 
|  | endArguments(0, (, )) | 
|  | handleSend((, )) | 
|  | handleNonNullAssertExpression(!) | 
|  | handleNoTypeArguments(() | 
|  | beginArguments(() | 
|  | endArguments(0, (, )) | 
|  | handleSend((, )) | 
|  | handleNonNullAssertExpression(!) | 
|  | handleExpressionStatement(e, ;) | 
|  | endBlockFunctionBody(1, {, }) | 
|  | endTopLevelMethod(void, null, }) | 
|  | endTopLevelDeclaration(}) | 
|  | endCompilationUnit(1, ) |