Represents the "LE" entry of the polyline annotation object.

It is an optional entry defined as part of the PDF 1.0 specification.

It contains an array which contains strings, representing PDF name objects.

Items in this array may take one of the following valid values:.

• Square
• Circle
• Diamond
• OpenArrow
• ClosedArrow
• None
• Butt
• ROpenArrow
• RClosedArrow
• Slash

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 178, page 402.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 181, page 487.