code: public SDVariable fill(SDVariable shape, org.nd4j.linalg.api.buffer.DataType dataType, double value) {
          return fill(null, shape, dataType, value);
      }
docs: Generate an output variable with the specified (dynamic) shape with all elements set to the specified value
  
  @param shape Shape: must be a 1D array/variable
  @param value Value to set all elements to
  @return Output variable