code: def _prop_descriptions(self):
      return """\
          dtick
              Sets the step in-between ticks on this axis. Use with
              `tick0`. Must be a positive number, or special strings
              available to "log" and "date" axes. If the axis `type`
              is "log", then ticks are set every 10^(n*dtick) where n
              is the tick number. For example, to set a tick mark at
              1, 10, 100, 1000, ... set dtick to 1. To set tick marks
              at 1, 100, 10000, ... set dtick to 2. To set tick marks
              at 1, 5, 25, 125, 625, 3125, ... set dtick to
              log_10(5), or 0.69897000433. "log" has several special
              values; "L<f>", where `f` is a positive number, gives
              ticks linearly spaced in value (but not position). For
              example `tick0` = 0.1, `dtick` = "L0.5" will put ticks
              at 0.1, 0.6, 1.1, 1.6 etc. To show powers of 10 plus
              small digits between, use "D1" (all digits) or "D2"
              (only 2 and 5). `tick0` is ignored for "D1" and "D2".
              If the axis `type` is "date", then you must convert the
              time to milliseconds. For example, to set the interval
              between ticks to one day, set `dtick` to 86400000.0.
              "date" also has special values "M<n>" gives ticks
              spaced by a number of months. `n` must be a positive
              integer. To set ticks on the 15th of every third month,
              set `tick0` to "2000-01-15" and `dtick` to "M3". To set
              ticks every 4 years, set `dtick` to "M48"
          gridcolor
              Sets the color of the grid lines.
          griddash
              Sets the dash style of lines. Set to a dash type string
              ("solid", "dot", "dash", "longdash", "dashdot", or
              "longdashdot") or a dash length list in px (eg
              "5px,10px,2px,2px").
          gridwidth
              Sets the width (in px) of the grid lines.
          nticks
              Specifies the maximum number of ticks for the
              particular axis. The actual number of ticks will be
              chosen automatically to be less than or equal to
              `nticks`. Has an effect only if `tickmode` is set to
              "auto".
          showgrid
              Determines whether or not grid lines are drawn. If
              True, the grid lines are drawn at every tick mark.
          tick0
              Sets the placement of the first tick on this axis. Use
              with `dtick`. If the axis `type` is "log", then you
              must take the log of your starting tick (e.g. to set
              the starting tick to 100, set the `tick0` to 2) except
              when `dtick`=*L<f>* (see `dtick` for more info). If the
              axis `type` is "date", it should be a date string, like
              date data. If the axis `type` is "category", it should
              be a number, using the scale where each category is
              assigned a serial number from zero in the order it
              appears.
          tickcolor
              Sets the tick color.
          ticklen
              Sets the tick length (in px).
          tickmode
              Sets the tick mode for this axis. If "auto", the number
              of ticks is set via `nticks`. If "linear", the
              placement of the ticks is determined by a starting
              position `tick0` and a tick step `dtick` ("linear" is
              the default value if `tick0` and `dtick` are provided).
              If "array", the placement of the ticks is set via
              `tickvals` and the tick text is `ticktext`. ("array" is
              the default value if `tickvals` is provided).
          ticks
              Determines whether ticks are drawn or not. If "", this
              axis' ticks are not drawn. If "outside" ("inside"),
              this axis' are drawn outside (inside) the axis lines.
          tickvals
              Sets the values at which ticks on this axis appear.
              Only has an effect if `tickmode` is set to "array".
              Used with `ticktext`.
          tickvalssrc
              Sets the source reference on Chart Studio Cloud for
              `tickvals`.
          tickwidth
              Sets the tick width (in px).
          """
  
imports: from plotly.basedatatypes import BaseLayoutHierarchyType
  import copy
label_desc: Use image node_id 29 for calling the Minor obj's underlying member method code with example usage: obj._prop_descriptions() and returns: str