def _decoder(
# NOTE: mypy incorrectly thinks `Field` is a generic type
data: Dict[str, EncodedConfigTypes],
fields: Collection[Field], # type: ignore
) -> Iterable[Tuple[str, ConfigTypes]]:
# NOTE: this code is unwieldly but it satisfies `mypy`
for field in fields:
if field.type is Gwei:
yield field.name, Gwei(cast(int, data[field.name]))
elif field.type is Slot:
yield field.name, Slot(cast(int, data[field.name]))
elif field.type is Epoch:
yield field.name, Epoch(cast(int, data[field.name]))
elif field.type is Second:
yield field.name, Second(cast(int, data[field.name]))
elif field.type is bytes:
yield field.name, decode_hex(cast(str, data[field.name]))
elif field.type is Version:
yield field.name, Version(decode_hex(cast(str, data[field.name])))
else:
yield field.name, int(data[field.name])
def sample_fork_params():
return {
'previous_version': Version((0).to_bytes(4, 'little')),
'current_version': Version((0).to_bytes(4, 'little')),
'epoch': 2**32,
}
CHURN_LIMIT_QUOTIENT=2**16,
SHUFFLE_ROUND_COUNT=90,
HYSTERESIS_QUOTIENT=4,
HYSTERESIS_DOWNWARD_MULTIPLIER=1,
HYSTERESIS_UPWARD_MULTIPLIER=5,
# Genesis
MIN_GENESIS_ACTIVE_VALIDATOR_COUNT=2**14,
MIN_GENESIS_TIME=1578009600, # (= Jan 3, 2020)
# Gwei values
MIN_DEPOSIT_AMOUNT=Gwei(2**0 * GWEI_PER_ETH), # (= 1,000,000,000) Gwei
MAX_EFFECTIVE_BALANCE=Gwei(2**5 * GWEI_PER_ETH), # (= 32,000,000,00) Gwei
EJECTION_BALANCE=Gwei(2**4 * GWEI_PER_ETH), # (= 16,000,000,000) Gwei
EFFECTIVE_BALANCE_INCREMENT=Gwei(2**0 *
GWEI_PER_ETH), # (= 1,000,000,000) Gwei
# Initial values
GENESIS_FORK_VERSION=Version(b"\x00" * 4),
BLS_WITHDRAWAL_PREFIX=b"\x00",
# Time parameters
GENESIS_DELAY=Second(172800),
SECONDS_PER_SLOT=Second(12), # seconds
MIN_ATTESTATION_INCLUSION_DELAY=2**0, # (= 1) slots
SLOTS_PER_EPOCH=2**5, # (= 32) slots
MIN_SEED_LOOKAHEAD=2**0, # (= 1) epochs
MAX_SEED_LOOKAHEAD=2**2, # (= 4) epochs
SLOTS_PER_HISTORICAL_ROOT=2**13, # (= 8,192) slots
MIN_VALIDATOR_WITHDRAWABILITY_DELAY=2**8, # (= 256) epochs
SHARD_COMMITTEE_PERIOD=2**8, # (= 256) epochs
MIN_EPOCHS_TO_INACTIVITY_PENALTY=2**2,
# State list lengths
EPOCHS_PER_ETH1_VOTING_PERIOD=32,
EPOCHS_PER_HISTORICAL_VECTOR=2**16,
def sample_fork_params():
return {
"previous_version": Version((0).to_bytes(4, "little")),
"current_version": Version((0).to_bytes(4, "little")),
"epoch": 2 ** 32,
}
CHURN_LIMIT_QUOTIENT=2**16,
SHUFFLE_ROUND_COUNT=90,
HYSTERESIS_QUOTIENT=4,
HYSTERESIS_DOWNWARD_MULTIPLIER=1,
HYSTERESIS_UPWARD_MULTIPLIER=5,
# Genesis
MIN_GENESIS_ACTIVE_VALIDATOR_COUNT=16384,
MIN_GENESIS_TIME=1596546000,
# Gwei values
MIN_DEPOSIT_AMOUNT=Gwei(2**0 * GWEI_PER_ETH), # (= 1,000,000,000) Gwei
MAX_EFFECTIVE_BALANCE=Gwei(2**5 * GWEI_PER_ETH), # (= 32,000,000,00) Gwei
EJECTION_BALANCE=Gwei(2**4 * GWEI_PER_ETH), # (= 16,000,000,000) Gwei
EFFECTIVE_BALANCE_INCREMENT=Gwei(2**0 *
GWEI_PER_ETH), # (= 1,000,000,000) Gwei
# Initial values
GENESIS_FORK_VERSION=Version(b"\x00\x00\x00\x01"),
BLS_WITHDRAWAL_PREFIX=b"\x00",
# Time parameters
GENESIS_DELAY=Second(172800),
SECONDS_PER_SLOT=Second(12), # seconds
MIN_ATTESTATION_INCLUSION_DELAY=2**0, # (= 1) slots
SLOTS_PER_EPOCH=2**5, # (= 32) slots
MIN_SEED_LOOKAHEAD=2**0, # (= 1) epochs
MAX_SEED_LOOKAHEAD=2**2, # (= 4) epochs
SLOTS_PER_HISTORICAL_ROOT=2**13, # (= 8,192) slots
MIN_VALIDATOR_WITHDRAWABILITY_DELAY=2**8, # (= 256) epochs
SHARD_COMMITTEE_PERIOD=2**8, # (= 256) epochs
MIN_EPOCHS_TO_INACTIVITY_PENALTY=2**2,
# State list lengths
EPOCHS_PER_ETH1_VOTING_PERIOD=32,
EPOCHS_PER_HISTORICAL_VECTOR=2**16,
MIN_PER_EPOCH_CHURN_LIMIT=2 ** 2, CHURN_LIMIT_QUOTIENT=2 ** 16, SHUFFLE_ROUND_COUNT=90, HYSTERESIS_QUOTIENT=4, HYSTERESIS_DOWNWARD_MULTIPLIER=1, HYSTERESIS_UPWARD_MULTIPLIER=5, # Genesis MIN_GENESIS_ACTIVE_VALIDATOR_COUNT=640, MIN_GENESIS_TIME=1593433800, # Gwei values MIN_DEPOSIT_AMOUNT=Gwei(2 ** 0 * GWEI_PER_ETH), # (= 1,000,000,000) Gwei MAX_EFFECTIVE_BALANCE=Gwei(2 ** 5 * GWEI_PER_ETH), # (= 32,000,000,00) Gwei EJECTION_BALANCE=Gwei(2 ** 4 * GWEI_PER_ETH), # (= 16,000,000,000) Gwei EFFECTIVE_BALANCE_INCREMENT=Gwei(2 ** 0 * GWEI_PER_ETH), # (= 1,000,000,000) Gwei # Initial values GENESIS_FORK_VERSION=Version(b"\x00000121"), BLS_WITHDRAWAL_PREFIX=b"\x00", # Time parameters GENESIS_DELAY=Second(172800), SECONDS_PER_SLOT=Second(12), # seconds MIN_ATTESTATION_INCLUSION_DELAY=2 ** 0, # (= 1) slots SLOTS_PER_EPOCH=2 ** 5, # (= 32) slots MIN_SEED_LOOKAHEAD=2 ** 0, # (= 1) epochs MAX_SEED_LOOKAHEAD=2 ** 2, # (= 4) epochs SLOTS_PER_HISTORICAL_ROOT=2 ** 13, # (= 8,192) slots MIN_VALIDATOR_WITHDRAWABILITY_DELAY=2 ** 8, # (= 256) epochs SHARD_COMMITTEE_PERIOD=2 ** 8, # (= 256) epochs MIN_EPOCHS_TO_INACTIVITY_PENALTY=2 ** 2, # State list lengths EPOCHS_PER_ETH1_VOTING_PERIOD=32, EPOCHS_PER_HISTORICAL_VECTOR=2 ** 16,