code: def _prop_descriptions(self):
      return """\
          autocolorscale
              Determines whether the colorscale is a default palette
              (`autocolorscale: true`) or the palette determined by
              `marker.line.colorscale`. Has an effect only if in
              `marker.line.color`is set to a numerical array. In case
              `colorscale` is unspecified or `autocolorscale` is
              true, the default  palette will be chosen according to
              whether numbers in the `color` array are all positive,
              all negative or mixed.
          cauto
              Determines whether or not the color domain is computed
              with respect to the input data (here in
              `marker.line.color`) or the bounds set in
              `marker.line.cmin` and `marker.line.cmax`  Has an
              effect only if in `marker.line.color`is set to a
              numerical array. Defaults to `false` when
              `marker.line.cmin` and `marker.line.cmax` are set by
              the user.
          cmax
              Sets the upper bound of the color domain. Has an effect
              only if in `marker.line.color`is set to a numerical
              array. Value should have the same units as in
              `marker.line.color` and if set, `marker.line.cmin` must
              be set as well.
          cmid
              Sets the mid-point of the color domain by scaling
              `marker.line.cmin` and/or `marker.line.cmax` to be
              equidistant to this point. Has an effect only if in
              `marker.line.color`is set to a numerical array. Value
              should have the same units as in `marker.line.color`.
              Has no effect when `marker.line.cauto` is `false`.
          cmin
              Sets the lower bound of the color domain. Has an effect
              only if in `marker.line.color`is set to a numerical
              array. Value should have the same units as in
              `marker.line.color` and if set, `marker.line.cmax` must
              be set as well.
          color
              Sets themarker.linecolor. It accepts either a specific
              color or an array of numbers that are mapped to the
              colorscale relative to the max and min values of the
              array or relative to `marker.line.cmin` and
              `marker.line.cmax` if set.
          coloraxis
              Sets a reference to a shared color axis. References to
              these shared color axes are "coloraxis", "coloraxis2",
              "coloraxis3", etc. Settings for these shared color axes
              are set in the layout, under `layout.coloraxis`,
              `layout.coloraxis2`, etc. Note that multiple color
              scales can be linked to the same color axis.
          colorscale
              Sets the colorscale. Has an effect only if in
              `marker.line.color`is set to a numerical array. The
              colorscale must be an array containing arrays mapping a
              normalized value to an rgb, rgba, hex, hsl, hsv, or
              named color string. At minimum, a mapping for the
              lowest (0) and highest (1) values are required. For
              example, `[[0, 'rgb(0,0,255)'], [1, 'rgb(255,0,0)']]`.
              To control the bounds of the colorscale in color space,
              use`marker.line.cmin` and `marker.line.cmax`.
              Alternatively, `colorscale` may be a palette name
              string of the following list: Greys,YlGnBu,Greens,YlOrR
              d,Bluered,RdBu,Reds,Blues,Picnic,Rainbow,Portland,Jet,H
              ot,Blackbody,Earth,Electric,Viridis,Cividis.
          colorsrc
              Sets the source reference on Chart Studio Cloud for
              color .
          reversescale
              Reverses the color mapping if true. Has an effect only
              if in `marker.line.color`is set to a numerical array.
              If true, `marker.line.cmin` will correspond to the last
              color in the array and `marker.line.cmax` will
              correspond to the first color.
          width
              Sets the width (in px) of the lines bounding the marker
              points.
          """
  
imports: from plotly.basedatatypes import BaseTraceHierarchyType
  import copy
label_desc: Use image node_id 23 for calling the Line obj's underlying member method code with example usage: obj._prop_descriptions() and returns: str