init
Initializes the QRCodeCollector with configuration from the input JSON.
Extracts and sets the following parameters:
content: QR code content as Base64-encoded data URI (default: "")
fallbackText: Alternative text if QR code cannot be displayed (default: "")
Return
This QRCodeCollector instance for method chaining
Parameters
input
JSON object containing the collector configuration with fields: - content: The Base64-encoded QR code image data - fallbackText: Alternative text for display