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use failure::Fail;

///
/// Possible dGraph errors
///
#[derive(Debug, Fail)]
pub enum Error {
    #[fail(display = "Dgraph: Txn start mismatch")]
    StartTsMismatch,
    #[fail(display = "Dgraph: gRPC communication Error")]
    GrpcError(String),
    #[fail(display = "Dgraph: Txn is empty")]
    EmptyTxn,
    #[fail(display = "Dgraph: Missing Txn context")]
    MissingTxnContext,
}