'Construct a LargeBinary type.
:param length: optional, a length for the column for use in
DDL statements, for those BLOB types that accept a length
(i.e. MySQL).  It does *not* produce a small BINARY/VARBINARY
type - use the BINARY/VARBINARY types specifically for those.
May be safely omitted if no ``CREATE
TABLE`` will be issued.  Certain databases may require a
*length* for use in DDL, and will raise an exception when
the ``CREATE TABLE`` DDL is issued.'

def __init__(self, length=None):

    _Binary.__init__(self, length=length)
