meta property
Meta is a field reserved for custom information associated with a log line. To add metadata to an API call, specify the meta field under the lines object. Metadata can be viewed inside that line's context. WARNING: If inconsistent value types are used, that line's metadata, will not be parsed. For example, if a line is passed with a meta object, such as meta.myfield of type String, any subsequent lines with meta.myfield must have a String as the value type for meta.myfield. Source: LogDNA official documentation.
Implementation
Map<String, dynamic>? meta;