module Eth
module Eth::Sedes
module Eth::Utils
class Eth::Address
class Eth::Configuration
class Eth::Gas
class Eth::InvalidTransaction
class Eth::Key
class Eth::OpenSsl
class Eth::Secp256k1
class Eth::Tx
class Eth::ValidationError
eth
0.4.2
# all_lowercase?
def all_lowercase? address.match(/(?:0[xX])[a-f0-9]{40}/) end