pub enum QueryMsg {
    /// Returns the contract's config
    #[returns(crate::state::Config)]
    Config {},

    /// Returns the latest metric, given the metric's key
    #[returns(Metric)]
    Metric { key: String },

    /// Returns the full history of values for a given metric key, up to the capacity
    /// Includes optional limit on the number of metrics returned
    #[returns(Metrics)]
    HistoricalMetrics { key: String, limit: Option<u64> },

    /// Returns the latest metric for each key
    #[returns(Metrics)]
    AllLatestMetrics {},

    /// Returns the redemption rate of an stToken
    #[returns(RedemptionRateResponse)]
    RedemptionRate {
        /// The denom should be the ibc hash of an stToken as it lives on the oracle chain
        /// (e.g. ibc/{hash(transfer/channel-326/stuatom)} on Osmosis)
        denom: String,
        /// Params should always be None, but was included in this query
        /// to align with other price oracles that take additional parameters such as TWAP
        params: Option<Binary>,
    },

    /// Returns a list of redemption rates over time for an stToken
    #[returns(RedemptionRates)]
    HistoricalRedemptionRates {
        /// The denom should be the ibc hash of an stToken as it lives on the oracle chain
        /// (e.g. ibc/{hash(transfer/channel-326/stuatom)} on Osmosis)
        denom: String,
        /// Params should always be None, but was included in this query
        /// to align with other price oracles that take additional parameters such as TWAP
        params: Option<Binary>,
        /// Optional limit on the number of entries to return
        limit: Option<u64>,
    },
}