# Code ## Code Attributes These attributes allow to report this unit of code and therefore to provide more context about the span. | Attribute | Type | Description | Examples | Stability | |---|---|---|---|---| | `code.column` | int | The column number in `code.filepath` best representing the operation. It SHOULD point within the code unit named in `code.function`. | `16` |  | | `code.filepath` | string | The source code file name that identifies the code unit as uniquely as possible (preferably an absolute file path). | `/usr/local/MyApplication/content_root/app/index.php` |  | | `code.function` | string | The method or function name, or equivalent (usually rightmost part of the code unit's name). | `serveRequest` |  | | `code.lineno` | int | The line number in `code.filepath` best representing the operation. It SHOULD point within the code unit named in `code.function`. | `42` |  | | `code.namespace` | string | The "namespace" within which `code.function` is defined. Usually the qualified class or module name, such that `code.namespace` + some separator + `code.function` form a unique identifier for the code unit. | `com.example.MyHttpService` |  | | `code.stacktrace` | string | A stacktrace as a string in the natural representation for the language runtime. The representation is to be determined and documented by each language SIG. | `at com.example.GenerateTrace.methodB(GenerateTrace.java:13)\n at com.example.GenerateTrace.methodA(GenerateTrace.java:9)\n at com.example.GenerateTrace.main(GenerateTrace.java:5)` |  |