.full_figure_for_development() doesn't show all computed data for go.Carpet

I want to set text ticktext along the baxis of a go.Carpet but couldn't figure out how to format ticktext and tickvals in the Carpet constructor. I tried to use .full_figure_for_development() to inspect what is set by default but these key-values pairs are missing from

A simple example:

import plotly.graph_objects as go

fig = go.Figure()

a = [0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3]
b = [4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6]
b2 = ['a', 'a', 'a', 'b', 'b', 'b', 'c', 'c', 'c']
y = [1, 1.4, 1.6, 1.75, 2, 2.5, 2.7, 2.75, 3, 3.5, 3.7, 3.75]

fig.add_trace(go.Carpet(
    a = a,
    b = b,  # b2,
    y = y,
    aaxis = dict(
        tickprefix = 'a = ',
    ),
    baxis = dict(
        tickprefix = 'b = ',
        smoothing = 0,
        # tickmode = 'array',
        # ticktext = b2,  # ['a', 'b', 'c'],
        # tickvals = b,  # [4, 5, 6]
    )
))

fig.show()

full_fig = fig.full_figure_for_development()
print(full_fig.data[0]['baxis'])  # ticktext and tickvals missing!

i.e. I want to figure out how to set b = 4 to b = 6 to a, b, and c

Start with the provided go.Carpet example and run full_figure_for_development() to reproduce the missing baxis ticktext and tickvals. Trace how Carpet defaults are computed and represented, then verify that the resulting baxis includes the expected computed data without breaking existing figure output.