text: /**
   * @license Highcharts Gantt JS v7.2.1 (2019-10-31)
   *
   * GridAxis
   *
   * (c) 2016-2019 Lars A. V. Cabrera
   *
   * License: www.highcharts.com/license
   */
  'use strict';
  (function (factory) {
      if (typeof module === 'object' && module.exports) {
          factory['default'] = factory;
          module.exports = factory;
      } else if (typeof define === 'function' && define.amd) {
          define('highcharts/modules/grid-axis', ['highcharts'], function (Highcharts) {
              factory(Highcharts);
              factory.Highcharts = Highcharts;
              return factory;
          });
      } else {
          factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
      }
  }(function (Highcharts) {
      var _modules = Highcharts ? Highcharts._modules : {};
      function _registerModule(obj, path, args, fn) {
          if (!obj.hasOwnProperty(path)) {
              obj[path] = fn.apply(null, args);
          }
      }
      _registerModule(_modules, 'parts-gantt/GridAxis.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js']], function (H, U) {
          /* *
           *
           *  (c) 2016 Highsoft AS
           *  Authors: Lars A. V. Cabrera
           *
           *  License: www.highcharts.com/license
           *
           *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
           *
           * */
          var defined = U.defined, erase = U.erase, isArray = U.isArray, isNumber = U.isNumber, pick = U.pick;
          var addEvent = H.addEvent, argsToArray = function (args) {
              return Array.prototype.slice.call(args, 1);
          }, dateFormat = H.dateFormat, isObject = function (x) {
              // Always use strict mode
              return U.isObject(x, true);
          }, merge = H.merge, wrap = H.wrap, Chart = H.Chart, Axis = H.Axis, Tick = H.Tick;
          var applyGridOptions = function applyGridOptions(axis) {
              var options = axis.options, gridOptions = options && isObject(options.grid) ? options.grid : {}, 
              // TODO: Consider using cell margins defined in % of font size?
              // 25 is optimal height for default fontSize (11px)
              // 25 / 11 ≈ 2.28
              fontSizeToCellHeightRatio = 25 / 11, fontSize = options.labels.style.fontSize, fontMetrics = axis.chart.renderer.fontMetrics(fontSize);
              // Center-align by default
              if (!options.labels) {
                  options.labels = {};
              }
              options.labels.align = pick(options.labels.align, 'center');
              // @todo: Check against tickLabelPlacement between/on etc
              /* Prevents adding the last tick label if the axis is not a category
                 axis.
                 Since numeric labels are normally placed at starts and ends of a
                 range of value, and this module makes the label point at the value,
                 an "extra" label would appear. */
              if (!axis.categories) {
                  options.showLastLabel = false;
              }
              // Make tick marks taller, creating cell walls of a grid. Use cellHeight
              // axis option if set
              if (axis.horiz) {
                  options.tickLength = gridOptions.cellHeight ||
                      fontMetrics.h * fontSizeToCellHeightRatio;
              }
              // Prevents rotation of labels when squished, as rotating them would not
              // help.
              axis.labelRotation = 0;
              options.labels.rotation = 0;
          };
          /**
           * Set grid options for the axis labels. Requires Highcharts Gantt.
           *
           * @since     6.2.0
           * @product   gantt
           * @apioption xAxis.grid
           */
          /**
           * Enable grid on the axis labels. Defaults to true for Gantt charts.
           *
           * @type      {boolean}
           * @default   true
           * @since     6.2.0
           * @product   gantt
           * @apioption xAxis.grid.enabled
           */
          /**
           * Set specific options for each column (or row for horizontal axes) in the
           * grid. Each extra column/row is its own axis, and the axis options can be set
           * here.
           *
           * @sample gantt/demo/left-axis-table
           *         Left axis as a table
           *
           * @type      {Array<Highcharts.XAxisOptions>}
           * @apioption xAxis.grid.columns
           */
          /**
           * Set border color for the label grid lines.
           *
           * @type      {Highcharts.ColorString}
           * @apioption xAxis.grid.borderColor
           */
          /**
           * Set border width of the label grid lines.
           *
           * @type      {number}
           * @default   1
           * @apioption xAxis.grid.borderWidth
           */
          /**
           * Set cell height for grid axis labels. By default this is calculated from font
           * size.
           *
           * @type      {number}
           * @apioption xAxis.grid.cellHeight
           */
          // Enum for which side the axis is on.
          // Maps to axis.side
          var axisSide = {
              top: 0,
              right: 1,
              bottom: 2,
              left: 3,
              0: 'top',
              1: 'right',
              2: 'bottom',
              3: 'left'
          };
          /**
           * Checks if an axis is the outer axis in its dimension. Since
           * axes are placed outwards in order, the axis with the highest
           * index is the outermost axis.
           *
           * Example: If there are multiple x-axes at the top of the chart,
           * this function returns true if the axis supplied is the last
           * of the x-axes.
           *
           * @private
           * @function Highcharts.Axis#isOuterAxis
           *
           * @return {boolean}
           *         true if the axis is the outermost axis in its dimension; false if not
           */
          Axis.prototype.isOuterAxis = function () {
              var axis = this, chart = axis.chart, columnIndex = axis.columnIndex, columns = axis.linkedParent && axis.linkedParent.columns ||
                  axis.columns, parentAxis = columnIndex ? axis.linkedParent : axis, thisIndex = -1, lastIndex = 0;
              chart[axis.coll].forEach(function (otherAxis, index) {
                  if (otherAxis.side === axis.side && !otherAxis.options.isInternal) {
                      lastIndex = index;
                      if (otherAxis === parentAxis) {
                          // Get the index of the axis in question
                          thisIndex = index;
                      }
                  }
              });
              return (lastIndex === thisIndex &&
                  (isNumber(columnIndex) ? columns.length === columnIndex : true));
          };
          /**
           * Get the largest label width and height.
           *
           * @private
           * @function Highcharts.Axis#getMaxLabelDimensions
           *
           * @param {Highcharts.Dictionary<Highcharts.Tick>} ticks
           *        All the ticks on one axis.
           *
           * @param {Array<number|string>} tickPositions
           *        All the tick positions on one axis.
           *
           * @return {Highcharts.SizeObject}
           *         object containing the properties height and width.
           */
          Axis.prototype.getMaxLabelDimensions = function (ticks, tickPositions) {
              var dimensions = {
                  width: 0,
                  height: 0
              };
              tickPositions.forEach(function (pos) {
                  var tick = ticks[pos], tickHeight = 0, tickWidth = 0, label;
                  if (isObject(tick)) {
                      label = isObject(tick.label) ? tick.label : {};
                      // Find width and height of tick
                      tickHeight = label.getBBox ? label.getBBox().height : 0;
                      if (label.textStr && !isNumber(label.textPxLength)) {
                          label.textPxLength = label.getBBox().width;
                      }
                      tickWidth = isNumber(label.textPxLength) ?
                          // Math.round ensures crisp lines
                          Math.round(label.textPxLength) :
                          0;
                      // Update the result if width and/or height are larger
                      dimensions.height = Math.max(tickHeight, dimensions.height);
                      dimensions.width = Math.max(tickWidth, dimensions.width);
                  }
              });
              return dimensions;
          };
          // Add custom date formats
          H.dateFormats.W = function (timestamp) {
              var d = new Date(timestamp), yearStart, weekNo;
              d.setHours(0, 0, 0, 0);
              d.setDate(d.getDate() - (d.getDay() || 7));
              yearStart = new Date(d.getFullYear(), 0, 1);
              weekNo =
                  Math.ceil((((d - yearStart) / 86400000) + 1) / 7);
              return weekNo;
          };
          // First letter of the day of the week, e.g. 'M' for 'Monday'.
          H.dateFormats.E = function (timestamp) {
              return dateFormat('%a', timestamp, true).charAt(0);
          };
          /* eslint-disable no-invalid-this, valid-jsdoc */
          addEvent(Tick, 'afterGetLabelPosition', 
          /**
           * Center tick labels in cells.
           *
           * @private
           */
          function (e) {
              var tick = this, label = tick.label, axis = tick.axis, reversed = axis.reversed, chart = axis.chart, options = axis.options, gridOptions = ((options && isObject(options.grid)) ? options.grid : {}), labelOpts = axis.options.labels, align = labelOpts.align, 
              // verticalAlign is currently not supported for axis.labels.
              verticalAlign = 'middle', // labelOpts.verticalAlign,
              side = axisSide[axis.side], tickmarkOffset = e.tickmarkOffset, tickPositions = axis.tickPositions, tickPos = tick.pos - tickmarkOffset, nextTickPos = (isNumber(tickPositions[e.index + 1]) ?
                  tickPositions[e.index + 1] - tickmarkOffset :
                  axis.max + tickmarkOffset), tickSize = axis.tickSize('tick', true), tickWidth = isArray(tickSize) ? tickSize[0] : 0, crispCorr = tickSize && tickSize[1] / 2, labelHeight, lblMetrics, lines, bottom, top, left, right;
              // Only center tick labels in grid axes
              if (gridOptions.enabled === true) {
                  // Calculate top and bottom positions of the cell.
                  if (side === 'top') {
                      bottom = axis.top + axis.offset;
                      top = bottom - tickWidth;
                  }
                  else if (side === 'bottom') {
                      top = chart.chartHeight - axis.bottom + axis.offset;
                      bottom = top + tickWidth;
                  }
                  else {
                      bottom = axis.top + axis.len - axis.translate(reversed ? nextTickPos : tickPos);
                      top = axis.top + axis.len - axis.translate(reversed ? tickPos : nextTickPos);
                  }
                  // Calculate left and right positions of the cell.
                  if (side === 'right') {
                      left = chart.chartWidth - axis.right + axis.offset;
                      right = left + tickWidth;
                  }
                  else if (side === 'left') {
                      right = axis.left + axis.offset;
                      left = right - tickWidth;
                  }
                  else {
                      left = Math.round(axis.left + axis.translate(reversed ? nextTickPos : tickPos)) - crispCorr;
                      right = Math.round(axis.left + axis.translate(reversed ? tickPos : nextTickPos)) - crispCorr;
                  }
                  tick.slotWidth = right - left;
                  // Calculate the positioning of the label based on alignment.
                  e.pos.x = (align === 'left' ?
                      left :
                      align === 'right' ?
                          right :
                          left + ((right - left) / 2) // default to center
                  );
                  e.pos.y = (verticalAlign === 'top' ?
                      top :
                      verticalAlign === 'bottom' ?
                          bottom :
                          top + ((bottom - top) / 2) // default to middle
                  );
                  lblMetrics = chart.renderer.fontMetrics(labelOpts.style.fontSize, label.element);
                  labelHeight = label.getBBox().height;
                  // Adjustment to y position to align the label correctly.
                  // Would be better to have a setter or similar for this.
                  if (!labelOpts.useHTML) {
                      lines = Math.round(labelHeight / lblMetrics.h);
                      e.pos.y += (
                      // Center the label
                      // TODO: why does this actually center the label?
                      ((lblMetrics.b - (lblMetrics.h - lblMetrics.f)) / 2) +
                          // Adjust for height of additional lines.
                          -(((lines - 1) * lblMetrics.h) / 2));
                  }
                  else {
                      e.pos.y += (
                      // Readjust yCorr in htmlUpdateTransform
                      lblMetrics.b +
                          // Adjust for height of html label
                          -(labelHeight / 2));
                  }
                  e.pos.x += (axis.horiz && labelOpts.x || 0);
              }
          });
          // Draw vertical axis ticks extra long to create cell floors and roofs.
          // Overrides the tickLength for vertical axes.
          addEvent(Axis, 'afterTickSize', function (e) {
              var axis = this, dimensions = axis.maxLabelDimensions, options = axis.options, gridOptions = (options && isObject(options.grid)) ? options.grid : {}, labelPadding, distance;
              if (gridOptions.enabled === true) {
                  labelPadding =
                      (Math.abs(axis.defaultLeftAxisOptions.labels.x) * 2);
                  distance = labelPadding + (axis.horiz ?
                      dimensions.height :
                      dimensions.width);
                  if (isArray(e.tickSize)) {
                      e.tickSize[0] = distance;
                  }
                  else {
                      e.tickSize = [distance];
                  }
              }
          });
          addEvent(Axis, 'afterGetTitlePosition', function (e) {
              var axis = this, options = axis.options, gridOptions = (options && isObject(options.grid)) ? options.grid : {};
              if (gridOptions.enabled === true) {
                  // compute anchor points for each of the title align options
                  var title = axis.axisTitle, titleWidth = title && title.getBBox().width, horiz = axis.horiz, axisLeft = axis.left, axisTop = axis.top, axisWidth = axis.width, axisHeight = axis.height, axisTitleOptions = options.title, opposite = axis.opposite, offset = axis.offset, tickSize = axis.tickSize() || [0], xOption = axisTitleOptions.x || 0, yOption = axisTitleOptions.y || 0, titleMargin = pick(axisTitleOptions.margin, horiz ? 5 : 10), titleFontSize = axis.chart.renderer.fontMetrics(axisTitleOptions.style &&
                      axisTitleOptions.style.fontSize, title).f, 
                  // TODO account for alignment
                  // the position in the perpendicular direction of the axis
                  offAxis = (horiz ? axisTop + axisHeight : axisLeft) +
                      (horiz ? 1 : -1) * // horizontal axis reverses the margin
                          (opposite ? -1 : 1) * // so does opposite axes
                          (tickSize[0] / 2) +
                      (axis.side === axisSide.bottom ? titleFontSize : 0);
                  e.titlePosition.x = horiz ?
                      axisLeft - titleWidth / 2 - titleMargin + xOption :
                      offAxis + (opposite ? axisWidth : 0) + offset + xOption;
                  e.titlePosition.y = horiz ?
                      (offAxis -
                          (opposite ? axisHeight : 0) +
                          (opposite ? titleFontSize : -titleFontSize) / 2 +
                          offset +
                          yOption) :
                      axisTop - titleMargin + yOption;
              }
          });
          // Avoid altering tickInterval when reserving space.
          wrap(Axis.prototype, 'unsquish', function (proceed) {
              var axis = this, options = axis.options, gridOptions = (options && isObject(options.grid)) ? options.grid : {};
              if (gridOptions.enabled === true && this.categories) {
                  return this.tickInterval;
              }
              return proceed.apply(this, argsToArray(arguments));
          });
          addEvent(Axis, 'afterSetOptions', 
          /**
           * Creates a left and right wall on horizontal axes:
           *
           * - Places leftmost tick at the start of the axis, to create a left wall
           *
           * - Ensures that the rightmost tick is at the end of the axis, to create a
           *   right wall.
           *
           * @private
           * @function
           */
          function (e) {
              var options = this.options, userOptions = e.userOptions, gridAxisOptions, gridOptions = ((options && isObject(options.grid)) ? options.grid : {});
              if (gridOptions.enabled === true) {
                  // Merge the user options into default grid axis options so that
                  // when a user option is set, it takes presedence.
                  gridAxisOptions = merge(true, {
                      className: ('highcharts-grid-axis ' + (userOptions.className || '')),
                      dateTimeLabelFormats: {
                          hour: {
                              list: ['%H:%M', '%H']
                          },
                          day: {
                              list: ['%A, %e. %B', '%a, %e. %b', '%E']
                          },
                          week: {
                              list: ['Week %W', 'W%W']
                          },
                          month: {
                              list: ['%B', '%b', '%o']
                          }
                      },
                      grid: {
                          borderWidth: 1
                      },
                      labels: {
                          padding: 2,
                          style: {
                              fontSize: '13px'
                          }
                      },
                      margin: 0,
                      title: {
                          text: null,
                          reserveSpace: false,
                          rotation: 0
                      },
                      // In a grid axis, only allow one unit of certain types, for
                      // example we shouln't have one grid cell spanning two days.
                      units: [[
                              'millisecond',
                              [1, 10, 100]
                          ], [
                              'second',
                              [1, 10]
                          ], [
                              'minute',
                              [1, 5, 15]
                          ], [
                              'hour',
                              [1, 6]
                          ], [
                              'day',
                              [1]
                          ], [
                              'week',
                              [1]
                          ], [
                              'month',
                              [1]
                          ], [
                              'year',
                              null
                          ]]
                  }, userOptions);
                  // X-axis specific options
                  if (this.coll === 'xAxis') {
                      // For linked axes, tickPixelInterval is used only if the
                      // tickPositioner below doesn't run or returns undefined (like
                      // multiple years)
                      if (defined(userOptions.linkedTo) &&
                          !defined(userOptions.tickPixelInterval)) {
                          gridAxisOptions.tickPixelInterval = 350;
                      }
                      // For the secondary grid axis, use the primary axis' tick
                      // intervals and return ticks one level higher.
                      if (
                      // Check for tick pixel interval in options
                      !defined(userOptions.tickPixelInterval) &&
                          // Only for linked axes
                          defined(userOptions.linkedTo) &&
                          !defined(userOptions.tickPositioner) &&
                          !defined(userOptions.tickInterval)) {
                          gridAxisOptions.tickPositioner = function (min, max) {
                              var parentInfo = (this.linkedParent &&
                                  this.linkedParent.tickPositions &&
                                  this.linkedParent.tickPositions.info);
                              if (parentInfo) {
                                  var unitIdx, count, unitName, i, units = gridAxisOptions.units, unitRange;
                                  for (i = 0; i < units.length; i++) {
                                      if (units[i][0] ===
                                          parentInfo.unitName) {
                                          unitIdx = i;
                                          break;
                                      }
                                  }
                                  // Spanning multiple years, go default
                                  if (!units[unitIdx][1]) {
                                      return;
                                  }
                                  // Get the first allowed count on the next unit.
                                  if (units[unitIdx + 1]) {
                                      unitName = units[unitIdx + 1][0];
                                      count =
                                          (units[unitIdx + 1][1] || [1])[0];
                                  }
                                  unitRange = H.timeUnits[unitName];
                                  this.tickInterval = unitRange * count;
                                  return this.getTimeTicks({
                                      unitRange: unitRange,
                                      count: count,
                                      unitName: unitName
                                  }, min, max, this.options.startOfWeek);
                              }
                          };
                      }
                  }
                  // Now merge the combined options into the axis options
                  merge(true, this.options, gridAxisOptions);
                  if (this.horiz) {
                      /*               _________________________
                         Make this:    ___|_____|_____|_____|__|
                                       ^                     ^
                                       _________________________
                         Into this:    |_____|_____|_____|_____|
                                          ^                 ^    */
                      options.minPadding = pick(userOptions.minPadding, 0);
                      options.maxPadding = pick(userOptions.maxPadding, 0);
                  }
                  // If borderWidth is set, then use its value for tick and line
                  // width.
                  if (isNumber(options.grid.borderWidth)) {
                      options.tickWidth = options.lineWidth = gridOptions.borderWidth;
                  }
              }
          });
          addEvent(Axis, 'afterSetAxisTranslation', function () {
              var axis = this, options = axis.options, gridOptions = ((options && isObject(options.grid)) ? options.grid : {}), tickInfo = this.tickPositions && this.tickPositions.info, userLabels = this.userOptions.labels || {};
              if (this.horiz) {
                  if (gridOptions.enabled === true) {
                      axis.series.forEach(function (series) {
                          series.options.pointRange = 0;
                      });
                  }
                  // Lower level time ticks, like hours or minutes, represent points
                  // in time and not ranges. These should be aligned left in the grid
                  // cell by default. The same applies to years of higher order.
                  if (tickInfo &&
                      (options.dateTimeLabelFormats[tickInfo.unitName]
                          .range === false ||
                          tickInfo.count > 1 // years
                      ) &&
                      !defined(userLabels.align)) {
                      options.labels.align = 'left';
                      if (!defined(userLabels.x)) {
                          options.labels.x = 3;
                      }
                  }
              }
          });
          // @todo Does this function do what the drawing says? Seems to affect ticks and
          //       not the labels directly?
          addEvent(Axis, 'trimTicks', 
          /**
           * Makes tick labels which are usually ignored in a linked axis displayed if
           * they are within range of linkedParent.min.
           * ```
           *                        _____________________________
           *                        |   |       |       |       |
           * Make this:             |   |   2   |   3   |   4   |
           *                        |___|_______|_______|_______|
           *                          ^
           *                        _____________________________
           *                        |   |       |       |       |
           * Into this:             | 1 |   2   |   3   |   4   |
           *                        |___|_______|_______|_______|
           *                          ^
           * ```
           *
           * @private
           */
          function () {
              var axis = this, options = axis.options, gridOptions = ((options && isObject(options.grid)) ? options.grid : {}), categoryAxis = axis.categories, tickPositions = axis.tickPositions, firstPos = tickPositions[0], lastPos = tickPositions[tickPositions.length - 1], linkedMin = axis.linkedParent && axis.linkedParent.min, linkedMax = axis.linkedParent && axis.linkedParent.max, min = linkedMin || axis.min, max = linkedMax || axis.max, tickInterval = axis.tickInterval, endMoreThanMin = (firstPos < min &&
                  firstPos + tickInterval > min), startLessThanMax = (lastPos > max &&
                  lastPos - tickInterval < max);
              if (gridOptions.enabled === true &&
                  !categoryAxis &&
                  (axis.horiz || axis.isLinked)) {
                  if (endMoreThanMin && !options.startOnTick) {
                      tickPositions[0] = min;
                  }
                  if (startLessThanMax && !options.endOnTick) {
                      tickPositions[tickPositions.length - 1] = max;
                  }
              }
          });
          addEvent(Axis, 'afterRender', 
          /**
           * Draw an extra line on the far side of the outermost axis,
           * creating floor/roof/wall of a grid. And some padding.
           * ```
           * Make this:
           *             (axis.min) __________________________ (axis.max)
           *                           |    |    |    |    |
           * Into this:
           *             (axis.min) __________________________ (axis.max)
           *                        ___|____|____|____|____|__
           * ```
           *
           * @private
           * @function
           *
           * @param {Function} proceed
           *        the original function
           */
          function () {
              var axis = this, options = axis.options, gridOptions = ((options && isObject(options.grid)) ? options.grid : {}), yStartIndex, yEndIndex, xStartIndex, xEndIndex, renderer = axis.chart.renderer;
              if (gridOptions.enabled === true) {
                  // @todo acutual label padding (top, bottom, left, right)
                  axis.maxLabelDimensions = axis.getMaxLabelDimensions(axis.ticks, axis.tickPositions);
                  // Remove right wall before rendering if updating
                  if (axis.rightWall) {
                      axis.rightWall.destroy();
                  }
                  /*
                     Draw an extra axis line on outer axes
                                 >
                     Make this:    |______|______|______|___
  
                                 > _________________________
                     Into this:    |______|______|______|__|
                                                             */
                  if (axis.isOuterAxis() && axis.axisLine) {
                      var lineWidth = options.lineWidth;
                      if (lineWidth) {
                          var linePath = axis.getLinePath(lineWidth);
                          xStartIndex = linePath.indexOf('M') + 1;
                          xEndIndex = linePath.indexOf('L') + 1;
                          yStartIndex = linePath.indexOf('M') + 2;
                          yEndIndex = linePath.indexOf('L') + 2;
                          // Negate distance if top or left axis
                          // Subtract 1px to draw the line at the end of the tick
                          var distance = (axis.tickSize('tick')[0] - 1) * ((axis.side === axisSide.top ||
                              axis.side === axisSide.left) ? -1 : 1);
                          // If axis is horizontal, reposition line path vertically
                          if (axis.horiz) {
                              linePath[yStartIndex] =
                                  linePath[yStartIndex] + distance;
                              linePath[yEndIndex] =
                                  linePath[yEndIndex] + distance;
                          }
                          else {
                              // If axis is vertical, reposition line path
                              // horizontally
                              linePath[xStartIndex] =
                                  linePath[xStartIndex] + distance;
                              linePath[xEndIndex] =
                                  linePath[xEndIndex] + distance;
                          }
                          if (!axis.axisLineExtra) {
                              axis.axisLineExtra = renderer
                                  .path(linePath)
                                  .attr({
                                  zIndex: 7
                              })
                                  .addClass('highcharts-axis-line')
                                  .add(axis.axisGroup);
                              if (!renderer.styledMode) {
                                  axis.axisLineExtra.attr({
                                      stroke: options.lineColor,
                                      'stroke-width': lineWidth
                                  });
                              }
                          }
                          else {
                              axis.axisLineExtra.animate({
                                  d: linePath
                              });
                          }
                          // show or hide the line depending on options.showEmpty
                          axis.axisLine[axis.showAxis ? 'show' : 'hide'](true);
                      }
                  }
                  (axis.columns || []).forEach(function (column) {
                      column.render();
                  });
              }
          });
          // Handle columns and getOffset
          var onGridAxisAfterGetOffset = function onGridAxisAfterGetOffset() {
              (this.columns || []).forEach(function (column) {
                  column.getOffset();
              });
          };
          var onGridAxisAfterInit = function onGridAxisAfterInit() {
              var axis = this, chart = axis.chart, userOptions = axis.userOptions, options = axis.options, gridOptions = options && isObject(options.grid) ? options.grid : {};
              if (gridOptions.enabled) {
                  applyGridOptions(axis);
                  // TODO: wrap the axis instead
                  wrap(axis, 'labelFormatter', function (proceed) {
                      var axis = this.axis, tickPos = axis.tickPositions, value = this.value, series = (axis.isLinked ?
                          axis.linkedParent :
                          axis).series[0], isFirst = value === tickPos[0], isLast = value === tickPos[tickPos.length - 1], point = series && H.find(series.options.data, function (p) {
                          return p[axis.isXAxis ? 'x' : 'y'] === value;
                      });
                      // Make additional properties available for the
                      // formatter
                      this.isFirst = isFirst;
                      this.isLast = isLast;
                      this.point = point;
                      // Call original labelFormatter
                      return proceed.call(this);
                  });
              }
              if (gridOptions.columns) {
                  var columns = axis.columns = [], columnIndex = axis.columnIndex = 0;
                  // Handle columns, each column is a grid axis
                  while (++columnIndex < gridOptions.columns.length) {
                      var columnOptions = merge(userOptions, gridOptions.columns[gridOptions.columns.length - columnIndex - 1], {
                          linkedTo: 0,
                          // Force to behave like category axis
                          type: 'category'
                      });
                      delete columnOptions.grid.columns; // Prevent recursion
                      var column = new Axis(axis.chart, columnOptions, true);
                      column.isColumn = true;
                      column.columnIndex = columnIndex;
                      // Remove column axis from chart axes array, and place it
                      // in the columns array.
                      erase(chart.axes, column);
                      erase(chart[axis.coll], column);
                      columns.push(column);
                  }
              }
          };
          var onGridAxisAfterSetChartSize = function onGridAxisAfterSetChartSize() {
              this.axes.forEach(function (axis) {
                  (axis.columns || []).forEach(function (column) {
                      column.setAxisSize();
                      column.setAxisTranslation();
                  });
              });
          };
          // Handle columns and setScale
          var onGridAxisAfterSetScale = function onGridAxisAfterSetScale() {
              (this.columns || []).forEach(function (column) {
                  column.setScale();
              });
          };
          var onGridAxisDestroy = function onGridAxisDestroy(e) {
              (this.columns || []).forEach(function (column) {
                  column.destroy(e.keepEvents);
              });
          };
          // Wraps axis init to draw cell walls on vertical axes.
          var onGridAxisInit = function onGridAxisInit(e) {
              var userOptions = e.userOptions, gridOptions = ((userOptions && isObject(userOptions.grid)) ?
                  userOptions.grid :
                  {});
              if (gridOptions.enabled && defined(gridOptions.borderColor)) {
                  userOptions.tickColor = userOptions.lineColor = gridOptions.borderColor;
              }
          };
          var onGridAxisAfterSetOptions = function onGridAxisAfterSetOptions(e) {
              var axis = this, userOptions = e.userOptions, gridOptions = ((userOptions && isObject(userOptions.grid)) ?
                  userOptions.grid :
                  {}), columns = gridOptions.columns;
              // Add column options to the parent axis.
              // Children has their column options set on init in onGridAxisAfterInit.
              if (gridOptions.enabled && columns) {
                  merge(true, axis.options, columns[columns.length - 1]);
              }
          };
          var axisEvents = {
              afterGetOffset: onGridAxisAfterGetOffset,
              afterInit: onGridAxisAfterInit,
              afterSetOptions: onGridAxisAfterSetOptions,
              afterSetScale: onGridAxisAfterSetScale,
              destroy: onGridAxisDestroy,
              init: onGridAxisInit
          };
          // Add event handlers
          Object.keys(axisEvents).forEach(function (event) {
              addEvent(Axis, event, axisEvents[event]);
          });
          addEvent(Chart, 'afterSetChartSize', onGridAxisAfterSetChartSize);
  
      });
      _registerModule(_modules, 'masters/modules/grid-axis.src.js', [], function () {
  
  
      });
  }));