lineRanges

An array of objects, one for each occurrence of sensitive data in an email message or a non-binary text file such as an HTML, TXT, or XML file. Each Range object specifies a line or inclusive range of lines that contains the sensitive data, and the position of the data on the specified line or lines.

This value is often null for file types that are supported by Cell, Page, or Record objects. Exceptions are the location of sensitive data in: unstructured sections of an otherwise structured file, such as a comment in a file; a malformed file that Amazon Macie analyzes as plain text; and, a CSV or TSV file that has any column names that contain sensitive data.