pub fn load_aql_graph(
db_config: DatabaseConfiguration,
batch_size: u64,
vertex_attributes: Vec<DataItem>,
edge_attributes: Vec<DataItem>,
queries: Vec<Vec<AqlQuery>>,
) -> Result<AqlGraphLoader, GraphLoaderError>pub fn load_aql_graph(
db_config: DatabaseConfiguration,
batch_size: u64,
vertex_attributes: Vec<DataItem>,
edge_attributes: Vec<DataItem>,
queries: Vec<Vec<AqlQuery>>,
) -> Result<AqlGraphLoader, GraphLoaderError>