ValueError on `text.latex.preamble` parameter

[mmsaki]

Erorr

• When I run python two_assets.py a value error is being raised:

ValueError: Key text.latex.preamble: Could not convert ['\\usepackage{gensymb}'] to str

• Source of the error is here: https://github.com/angeris/cfmm-routing-code/blob/65311c1661ee96961a00f2bb07f70013f912d707/latexify.py#L43

See more of this issue here documented https://github.com/matplotlib/matplotlib/issues/26464

Fix

def latexify(fig_width=None, fig_height=None, font_size=12, columns=2):
    params = {'backend': 'ps',
        # Fix: This is expecting a string instead of array
        'text.latex.preamble': '\\usepackage{gensymb}',
    }