State

import { State } from 'voltaire-effect'
import { Effect } from 'effect'

// Create storage key
const key = yield* State.create('0x1234...', 0n)

// From object
const key2 = yield* State.from({ address: new Uint8Array(20), slot: 0n })

// String conversion
const str = State.toString(key)       // "0x1234...:0"
const parsed = State.fromString(str)  // StorageKeyType | undefined

// Comparison
State.equals(key1, key2)
State.hashCode(key)
State.is(value)