from typing import TYPE_CHECKING, Union
from brownie import Contract
from brownie.convert.datatypes import EthAddress, HexBytes
from eth_typing import AnyAddress, BlockNumber
if TYPE_CHECKING:
from y.prices.dex.uniswap.v2 import UniswapV2Pool
from y.prices.stable_swap.curve import CurvePool
Address = Union[str, HexBytes, AnyAddress, EthAddress]
"""
A union of types used to represent Ethereum addresses.
"""
Block = Union[int, BlockNumber]
"""
A union of types used to represent block numbers as integers.
"""
AddressOrContract = Union[Address, Contract]
AnyAddressType = Union[Address, Contract, int]
"""
A type alias representing any valid representation of an Ethereum address.
This can be an Address, a :class:`~y.Contract`, or an integer.
"""
Pool = Union["UniswapV2Pool", "CurvePool"]
"""
A union of types representing liquidity pools.
"""
[docs]
class UsdValue(float):
"""
Represents a USD value with custom string representation.
"""
[docs]
def __str__(self) -> str:
"""
Return a string representation of the USD value.
Returns:
A string formatted as a USD value with 8 decimal places.
"""
return f"${self:.8f}"
[docs]
class UsdPrice(UsdValue):
"""
Represents a USD price.
"""