I would like to read out the default x-ticks values.

In below example, I would like to get the default array [1,3,5,7,9,11].
I do not care about how plotly calculates it, but only want to get the final x-ticks array.

import plotly.graph_objects as go
import pandas as pd
import plotly.express as px
import json

def save_fig(fig,pngname):
    fig.write_image(pngname,format="png",width=800,height=500, scale=1)
    print("[[%s]]"%pngname)
    return

def main():
    x = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
    y = [28.8, 28.5, 37, 56.8, 69.7, 79.7, 78.5, 77.8, 74.1, 62.6, 45.3, 39.9]

    fig = go.Figure(go.Scatter(x=x, y=y))
    fig.update_layout(
        xaxis=dict(
            tickmode='linear',
            tick0=1,
            dtick=2
        )
    )
    
    save_fig(fig,"/media/sf_work/demo.png")
    return

main()

Output: