hypergraph 1.3.9

Hypergraph is data structure library to create a directed hypergraph in which an hyperedge can join any number of vertices.
Documentation 
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use rayon::prelude::*;

use crate::{
    core::shared::Connection, errors::HypergraphError, HyperedgeIndex, HyperedgeTrait, Hypergraph,
    VertexIndex, VertexTrait,
};

impl<V, HE> Hypergraph<V, HE>
where
    V: VertexTrait,
    HE: HyperedgeTrait,
{
    /// Gets the hyperedges directly connecting a vertex to another.
    pub fn get_hyperedges_connecting(
        &self,
        from: VertexIndex,
        to: VertexIndex,
    ) -> Result<Vec<HyperedgeIndex>, HypergraphError<V, HE>> {
        let results = self.get_connections(Connection::InAndOut(from, to))?;

        Ok(results
            .into_par_iter()
            .map(|(hyperedged_index, _)| hyperedged_index)
            .collect())
    }
}