Represents the "MH" entry of the rendition dictionary object.

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

It contains an Element.

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 266, page 489.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 277, page 613.

The MH entry references a must-honour parameter dictionary for this rendition. Parameters in this dictionary must be satisfied for the rendition to be selected and played.