represent the entire data range, with optional lines at the
        mean, the median, the minimum, the maximum, and the quantiles values.

        Parameters
        ----------
        vpstats : list of dicts
          A list of dictionaries containing stats for each violin plot.
          Required keys are:

          - ``coords``: A list of scalars containing the coordinates that
            the violin's kernel density estimate were evaluated at.

          - ``vals``: A list of scalars containing the values of the
            kernel density estimate at each of the coordinates given
            in *coords*.

          - ``mean``: The mean value for this violin's dataset.

          - ``median``: The median value for this violin's dataset.

          - ``min``: The minimum value for this violin's dataset.

          - ``max``: The maximum value for this violin's dataset.

          Optional keys are:

          - ``quantiles``: A list of scalars containing the quantile values
            for this violin's dataset.

        positions : array-like, default: [1, 2, ..., n]
          The positions of the violins. The ticks and limits are
          automatically set to match the positions.

        vert : bool, default: True.
          If true, plots the violins vertically.
          Otherwise, plots the violins horizontally.

        widths : array-like, default: 0.5
          Either a scalar or a vector that sets the maximal width of
          each violin. The default is 0.5, which uses about half of the
          available horizontal space.

        showmeans : bool, default: False
          If true, will toggle rendering of the means.

        showextrema : bool, default: True
          If true, will toggle rendering of the extrema.

        showmedians : bool, default: False
          If true, will toggle rendering of the medians.

        Returns
        -------
        dict
          A dictionary mapping each component of the violinplot to a
          list of the corresponding collection instances created. The
          dictionary has the following keys:

          - ``bodies``: A list of the `~.collections.PolyCollection`
            instances containing the filled area of each violin.

          - ``cmeans``: A `~.collections.LineCollection` instance that marks
            the mean values of each of the violin's distribution.

          - ``cmins``: A `~.collections.LineCollection` instance that marks
            the bottom of each violin's distribution.

          - ``cmaxes``: A `~.collections.LineCollection` instance that marks
            the top of each violin's distribution.

          - ``cbars``: A `~.collections.LineCollection` instance that marks
            the centers of each violin's distribution.

          - ``cmedians``: A `~.collections.LineCollection` instance that
            marks the median values of each of the violin's distribution.

          - ``cquantiles``: A `~.collections.LineCollection` instance created
            to identify the quantiles values of each of the violin's
            distribution.
        zHList of violinplot statistics and `{0}` values must have the same lengthNrl