| header* | string | | A comma-delimited list of keys assigned to each of the columns. |
| file_path* | strings | | File or directory paths to tail for logs. |
| exclude_file_path | strings | | File or directory paths to exclude. |
| log_type | string | csv | A friendly name that will be added to each log entry as an attribute. |
| start_at | enum | end | Start reading the file from the βbeginningβ or βendβ. |
| encoding | enum | utf-8 | The encoding of the file being read. Valid values include: nop, utf-8, utf-16le, utf-16be, ascii, big5. |