How to use the blockly.INPUT_VALUE function in blockly

Blockly.BlockSvg.SEP_SPACE_X * 1.25;
    } else {
      input.renderWidth = 0;
    }
    // Expand input size if there is a connection.
    if (input.connection && input.connection.isConnected()) {
      var linkedBlock = input.connection.targetBlock();
      var bBox = linkedBlock.getHeightWidth();
      input.renderHeight = Math.max(input.renderHeight, bBox.height);
      input.renderWidth = Math.max(input.renderWidth, bBox.width);
    }
    // Blocks have a one pixel shadow that should sometimes overhang.
    if (!isInline && i == inputList.length - 1) {
      // Last value input should overhang.
      input.renderHeight--;
    } else if (!isInline && input.type == Blockly.INPUT_VALUE &&
        inputList[i + 1] && inputList[i + 1].type == Blockly.NEXT_STATEMENT) {
      // Value input above statement input should overhang.
      input.renderHeight--;
    }

    row.height = Math.max(row.height, input.renderHeight);
    input.fieldWidth = 0;
    if (inputRows.length == 1) {
      // The first row gets shifted to accommodate any icons.
      input.fieldWidth += this.RTL ? -iconWidth : iconWidth;
    }
    var previousFieldEditable = false;
    for (var j = 0, field; field = input.fieldRow[j]; j++) {
      if (j != 0) {
        input.fieldWidth += Blockly.BlockSvg.SEP_SPACE_X;
      }

Sparql.scrub_ = function(block, code) {
  var commentCode = '';
  // Only collect comments for blocks that aren't inline.
  if (!block.outputConnection || !block.outputConnection.targetConnection) {
    // Collect comment for this block.
    var comment = block.getCommentText();
    if (comment) {
      commentCode += Sparql.prefixLines(comment, '// ') + '\n';
    }
    // Collect comments for all value arguments.
    // Don't collect comments for nested statements.
    for (var x = 0; x < block.inputList.length; x++) {
      if (block.inputList[x].type == Blockly.INPUT_VALUE) {
        var childBlock = block.inputList[x].connection.targetBlock();
        if (childBlock) {
          var childComment = Sparql.allNestedComments(childBlock);
          if (childComment) {
            commentCode += Sparql.prefixLines(childComment, '// ');
          }
        }
      }
    }
  }
  var nextBlock = block.nextConnection && block.nextConnection.targetBlock();
  var nextCode = Sparql.blockToCode(nextBlock);
  return commentCode + code + nextCode;
};

} else if (row.type == Blockly.DUMMY_INPUT) {
          hasDummy = true;
        }
        fieldValueWidth = Math.max(fieldValueWidth, input.fieldWidth);
      }
    } else if (input.type == Blockly.INPUT_VALUE) {
      row.hasValue = true;
    }
  }

  // Make inline rows a bit thicker in order to enclose the values.
  for (var y = 0, row; row = inputRows[y]; y++) {
    row.thicker = false;
    if (row.type == Blockly.BlockSvg.INLINE && !row.hasStatement) {
      for (var z = 0, input; input = row[z]; z++) {
        if (input.type == Blockly.INPUT_VALUE) {
          row.height += 2 * Blockly.BlockSvg.INLINE_PADDING_Y;
          row.thicker = true;
          break;
        }
      }
    }
  }

  // // Compute the statement edge.
  // // This is the width of a block where statements are nested.
  // inputRows.statementEdge = Math.max(inputRows.statementEdge, 2 * Blockly.BlockSvg.SEP_SPACE_X);
  //
  // // Compute the preferred right edge.  Inline blocks may extend beyond.
  // // This is the width of the block where external inputs connect.
  // if (hasStatement) {
  //   inputRows.rightEdge = Math.max(inputRows.rightEdge,

mutationToDom: function() {
    var container = document.createElement('mutation');
    var isAt1 = this.getInput('AT1').type == Blockly.INPUT_VALUE;
    container.setAttribute('at1', isAt1);
    var isAt2 = this.getInput('AT2').type == Blockly.INPUT_VALUE;
    container.setAttribute('at2', isAt2);
    return container;
  },
  /**

mutationToDom: function() {
    var container = document.createElement('mutation');
    var isAt = this.getInput('AT').type == Blockly.INPUT_VALUE;
    container.setAttribute('at', isAt);
    return container;
  },
  /**