BarcodeCode128 constructor
      const
      BarcodeCode128()
     
    
Create a Code128 Barcode
Implementation
const BarcodeCode128(
  this.useCode128A,
  this.useCode128B,
  this.useCode128C,
  this.isGS1,
  this.escapes,
) : assert(
      useCode128A || useCode128B || useCode128C,
      'Enable at least one of the CODE 128 tables',
    );