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use crate::{
bytesrepr::{FromBytes, ToBytes},
system::mint::Error,
CLTyped, URef, U512,
};
pub trait StorageProvider {
fn new_uref<T: CLTyped + ToBytes>(&mut self, init: T) -> Result<URef, Error>;
fn read<T: CLTyped + FromBytes>(&mut self, uref: URef) -> Result<Option<T>, Error>;
fn write<T: CLTyped + ToBytes>(&mut self, uref: URef, value: T) -> Result<(), Error>;
fn add<T: CLTyped + ToBytes>(&mut self, uref: URef, value: T) -> Result<(), Error>;
fn read_balance(&mut self, uref: URef) -> Result<Option<U512>, Error>;
fn write_balance(&mut self, uref: URef, balance: U512) -> Result<(), Error>;
fn add_balance(&mut self, uref: URef, value: U512) -> Result<(), Error>;
}