We show that the quantized Fock-Goncharov monodromy matrices satisfy the relations of the quantum special linear group $mathrm{SL}_n^q$. The proof employs a quantum version of the technology invented by Fock-Goncharov called snakes. This relationship between higher Teichmuller theory and quantum group theory is integral to the construction of a $mathrm{SL}_n$-quantum trace map for knots in thickened surfaces, developed in a companion paper (arXiv:2101.06817).
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