docs: public static ManagerFunctions.InputN createMultTransA() {
          return (inputs, manager) -> {
              if( inputs.size() != 2 )
                  throw new RuntimeException("Two inputs required");
  
              final Variable varA = inputs.get(0);
              final Variable varB = inputs.get(1);
  
              Operation.Info ret = new Operation.Info();
  
              if( varA instanceof VariableMatrix && varB instanceof VariableMatrix ) {
  
                  // The output matrix or scalar variable must be created with the provided manager
                  final VariableMatrix output = manager.createMatrix();
                  ret.output = output;
                  ret.op = new Operation("multTransA-mm") {
                      @Override
                      public void process() {
                          DMatrixRMaj mA = ((VariableMatrix)varA).matrix;
                          DMatrixRMaj mB = ((VariableMatrix)varB).matrix;
  
                          CommonOps_DDRM.multTransA(mA,mB,output.matrix);
                      }
                  };
              } else {
                  throw new IllegalArgumentException("Expected both inputs to be a matrix");
              }
  
              return ret;
          };
      }