Continuous q-Hahn polynomials

The polynomials are given in terms of basic hypergeometric functions and the q-Pochhammer symbol by ^[1]

${\displaystyle p_{n}(x;a,b,c,d|q)=a^{-n}e^{-inu}(abe^{2iu},ac,ad;q)_{n}{}_{4}\phi _{3}(q^{-n},abcdq^{n-1},ae^{i{(t+2u)}},ae^{-it};abe^{2iu},ac,ad;q;q)}$

${\displaystyle x=\cos(t+u)}$