c*D
Let $Pic(\bar{M}_{0,n})_R^{S_n}$ denote the vector space of $S_n$-invariant divisors with coefficients in a ring $R$. Here, given an $S_n$ symmetric $R$-divisor $D$ on $\bar{M}_{0,n}$ and a number $c$, the function returns $cD$.
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The source of this document is in /build/reproducible-path/macaulay2-1.25.05+ds/M2/Macaulay2/packages/ConformalBlocks.m2:1014:0.