vline annotation gives TypeError

[ggrrll]

I am trying to annotate my plot following https://plotly.com/python/horizontal-vertical-shapes/ , but I get

TypeError: Addition/subtraction of integers and integer-arrays with Timestamp is no longer supported.

my dataframe index is of type <M8[ns]

(it works without annotation_text)

ps: plotly Version: 5.10.0

here is the full log

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Input In [82], in <cell line: 4>()
      2 fig.update_layout(yaxis_title=r"uV")
      4 for time, text, color in zip(times_list_1, condi_list, color_list):
----> 6     fig.add_vline(x=time, annotation_text = text) # , annotation_position='bottom'
      8 #         plt.text(time, (y_min + y_max) /2 , text, c=color)
      9 
     10 # fig.show()
     12 fig.write_html('session1_resam_mean.html')

File /usr/local/lib/python3.9/site-packages/plotly/graph_objs/_figure.py:1013, in Figure.add_vline(self, x, row, col, exclude_empty_subplots, annotation, **kwargs)
    965 def add_vline(
    966     self,
    967     x,
   (...)
    972     **kwargs,
    973 ) -> "Figure":
    974     """
    975 
    976     Add a vertical line to a plot or subplot that extends infinitely in the
   (...)
   1011         except for x0, x1, y0, y1 or type.
   1012     """
-> 1013     return super(Figure, self).add_vline(
   1014         x, row, col, exclude_empty_subplots, annotation, **kwargs
   1015     )

File /usr/local/lib/python3.9/site-packages/plotly/basedatatypes.py:4086, in BaseFigure.add_vline(self, x, row, col, exclude_empty_subplots, annotation, **kwargs)
   4077 def add_vline(
   4078     self,
   4079     x,
   (...)
   4084     **kwargs,
   4085 ):
-> 4086     self._process_multiple_axis_spanning_shapes(
   4087         dict(type="line", x0=x, x1=x, y0=0, y1=1),
   4088         row,
   4089         col,
   4090         "vline",
   4091         exclude_empty_subplots=exclude_empty_subplots,
   4092         annotation=annotation,
   4093         **kwargs,
   4094     )
   4095     return self

File /usr/local/lib/python3.9/site-packages/plotly/basedatatypes.py:4031, in BaseFigure._process_multiple_axis_spanning_shapes(self, shape_args, row, col, shape_type, exclude_empty_subplots, annotation, **kwargs)
   4022 # shapes are always added at the end of the tuple of shapes, so we see
   4023 # how long the tuple is before the call and after the call, and adjust
   4024 # the new shapes that were added at the end
   4025 # extract annotation prefixed kwargs
   4026 # annotation with extra parameters based on the annotation_position
   4027 # argument and other annotation_ prefixed kwargs
   4028 shape_kwargs, annotation_kwargs = shapeannotation.split_dict_by_key_prefix(
   4029     kwargs, "annotation_"
   4030 )
-> 4031 augmented_annotation = shapeannotation.axis_spanning_shape_annotation(
   4032     annotation, shape_type, shape_args, annotation_kwargs
   4033 )
   4034 self.add_shape(
   4035     row=row,
   4036     col=col,
   4037     exclude_empty_subplots=exclude_empty_subplots,
   4038     **_combine_dicts([shape_args, shape_kwargs]),
   4039 )
   4040 if augmented_annotation is not None:

File /usr/local/lib/python3.9/site-packages/plotly/shapeannotation.py:216, in axis_spanning_shape_annotation(annotation, shape_type, shape_args, kwargs)
    214     annotation_position = kwargs["annotation_position"]
    215 if shape_type.endswith("line"):
--> 216     shape_dict = annotation_params_for_line(
    217         shape_type, shape_args, annotation_position
    218     )
    219 elif shape_type.endswith("rect"):
    220     shape_dict = annotation_params_for_rect(
    221         shape_type, shape_args, annotation_position
    222     )

File /usr/local/lib/python3.9/site-packages/plotly/shapeannotation.py:63, in annotation_params_for_line(shape_type, shape_args, position)
     61 aX = max(X)
     62 iX = min(X)
---> 63 eX = _mean(X)
     64 aaX = _argmax(X)
     65 aiX = _argmin(X)

File /usr/local/lib/python3.9/site-packages/plotly/shapeannotation.py:7, in _mean(x)
      5 if len(x) == 0:
      6     raise ValueError("x must have positive length")
----> 7 return float(sum(x)) / len(x)

File /usr/local/lib/python3.9/site-packages/pandas/_libs/tslibs/timestamps.pyx:311, in pandas._libs.tslibs.timestamps._Timestamp.__add__()

File /usr/local/lib/python3.9/site-packages/pandas/_libs/tslibs/timestamps.pyx:296, in pandas._libs.tslibs.timestamps._Timestamp.__add__()

TypeError: Addition/subtraction of integers and integer-arrays with Timestamp is no longer supported.  Instead of adding/subtracting `n`, use `n * obj.freq`

[ggrrll]

a similar issue, is already discussed in #3065 ...
but it's slightly different