@property
def line(self):
    '\n        The \'line\' property is an instance of Line\n        that may be specified as:\n          - An instance of :class:`plotly.graph_objs.histogram2dcontour.Line`\n          - A dict of string/value properties that will be passed\n            to the Line constructor\n\n            Supported dict properties:\n\n                color\n                    Sets the color of the contour level. Has no\n                    effect if `contours.coloring` is set to\n                    "lines".\n                dash\n                    Sets the dash style of lines. Set to a dash\n                    type string ("solid", "dot", "dash",\n                    "longdash", "dashdot", or "longdashdot") or a\n                    dash length list in px (eg "5px,10px,2px,2px").\n                smoothing\n                    Sets the amount of smoothing for the contour\n                    lines, where 0 corresponds to no smoothing.\n                width\n                    Sets the contour line width in (in px)\n\n        Returns\n        -------\n        plotly.graph_objs.histogram2dcontour.Line\n        '
    return self['line']
The 'line' property is an instance of Line
that may be specified as:
  - An instance of :class:`plotly.graph_objs.histogram2dcontour.Line`
  - A dict of string/value properties that will be passed
    to the Line constructor

    Supported dict properties:

        color
            Sets the color of the contour level. Has no
            effect if `contours.coloring` is set to
            "lines".
        dash
            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").
        smoothing
            Sets the amount of smoothing for the contour
            lines, where 0 corresponds to no smoothing.
        width
            Sets the contour line width in (in px)

Returns
-------
plotly.graph_objs.histogram2dcontour.Line
@property
def line(self):
    '\n        The \'line\' property is an instance of Line\n        that may be specified as:\n          - An instance of :class:`plotly.graph_objs.histogram2dcontour.Line`\n          - A dict of string/value properties that will be passed\n            to the Line constructor\n\n            Supported dict properties:\n\n                color\n                    Sets the color of the contour level. Has no\n                    effect if `contours.coloring` is set to\n                    "lines".\n                dash\n                    Sets the dash style of lines. Set to a dash\n                    type string ("solid", "dot", "dash",\n                    "longdash", "dashdot", or "longdashdot") or a\n                    dash length list in px (eg "5px,10px,2px,2px").\n                smoothing\n                    Sets the amount of smoothing for the contour\n                    lines, where 0 corresponds to no smoothing.\n                width\n                    Sets the contour line width in (in px)\n\n        Returns\n        -------\n        plotly.graph_objs.histogram2dcontour.Line\n        '
    return self['line']