Finding a complex function satisfying a relation

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Let $f:\mathbb{C}\longrightarrow\mathbb{C}$ be a complex differentiable function. Suppose $f$ satisfies $$f(e^{i\frac{2\pi }{n}}t)=\frac{1}{f(t)}$$ where $t\in\mathbb{R}$ (a variable) and $n$ is some natural number. Does such a function exist, and if so, what are some examples (besides the trivial ones)? This is related to some independent work I'm doing on contour integration. Any help would be much appreciated :)