code: public SDVariable lt(String name, SDVariable other){
          return sameDiff.lt(name, this, other);
      }
docs: Less than operation: elementwise {@code this < y}<br>
  If x and y arrays have equal shape, the output shape is the same as the inputs.<br>
  Supports broadcasting: if x and y have different shapes and are broadcastable, the output shape is broadcast.<br>
  Returns an array with values 1 where condition is satisfied, or value 0 otherwise.
  
  @param name  Name of the output variable
  @param other Variable to compare values against
  @return Output SDVariable with values 0 (not satisfied) and 1 (where the condition is satisfied)