Builder

Optionally defines a region where TTML style captions will be displayed

Specifies the teletext page number within the data stream from which to extract captions. Range of 0x100 (256) to 0x8FF (2303). Unused for passthrough. Should be specified as a hexadecimal string with no "0x" prefix.

construct an aws.sdk.kotlin.services.medialive.model.CaptionRectangle inside the given block