code: def _prop_descriptions(self):
      return """\
          font
              Sets the shape label text font.
          padding
              Sets padding (in px) between edge of label and edge of
              shape.
          text
              Sets the text to display with shape. It is also used
              for legend item if `name` is not provided.
          textangle
              Sets the angle at which the label text is drawn with
              respect to the horizontal. For lines, angle "auto" is
              the same angle as the line. For all other shapes, angle
              "auto" is horizontal.
          textposition
              Sets the position of the label text relative to the
              shape. Supported values for rectangles, circles and
              paths are *top left*, *top center*, *top right*,
              *middle left*, *middle center*, *middle right*, *bottom
              left*, *bottom center*, and *bottom right*. Supported
              values for lines are "start", "middle", and "end".
              Default: *middle center* for rectangles, circles, and
              paths; "middle" for lines.
          texttemplate
              Template string used for rendering the shape's label.
              Note that this will override `text`. Variables are
              inserted using %{variable}, for example "x0: %{x0}".
              Numbers are formatted using d3-format's syntax
              %{variable:d3-format}, for example "Price: %{x0:$.2f}".
              See
              https://github.com/d3/d3-format/tree/v1.4.5#d3-format
              for details on the formatting syntax. Dates are
              formatted using d3-time-format's syntax
              %{variable|d3-time-format}, for example "Day: %{x0|%m
              %b %Y}". See https://github.com/d3/d3-time-
              format/tree/v2.2.3#locale_format for details on the
              date formatting syntax. A single multiplication or
              division operation may be applied to numeric variables,
              and combined with d3 number formatting, for example
              "Length in cm: %{x0*2.54}", "%{slope*60:.1f} meters per
              second." For log axes, variable values are given in log
              units. For date axes, x/y coordinate variables and
              center variables use datetimes, while all other
              variable values use values in ms. Finally, the template
              string has access to variables `x0`, `x1`, `y0`, `y1`,
              `slope`, `dx`, `dy`, `width`, `height`, `length`,
              `xcenter` and `ycenter`.
          xanchor
              Sets the label's horizontal position anchor This anchor
              binds the specified `textposition` to the "left",
              "center" or "right" of the label text. For example, if
              `textposition` is set to *top right* and `xanchor` to
              "right" then the right-most portion of the label text
              lines up with the right-most edge of the shape.
          yanchor
              Sets the label's vertical position anchor This anchor
              binds the specified `textposition` to the "top",
              "middle" or "bottom" of the label text. For example, if
              `textposition` is set to *top right* and `yanchor` to
              "top" then the top-most portion of the label text lines
              up with the top-most edge of the shape.
          """
  
imports: from plotly.basedatatypes import BaseLayoutHierarchyType
  import copy
label_desc: Use image node_id 17 for calling the Label obj's underlying member method code with example usage: obj._prop_descriptions() and returns: str