'Reads some number of bytes from the BINARY_ format
representation by calling the function *read*, and returns the
native in-memory object representation for the datatype
handled by *self*.
Parameters
read : function
A function that given a number of bytes, returns a byte
string.
Returns
native : tuple (value, mask)
The value as a Numpy array or scalar, and *mask* is True
if the value is missing.'

def binparse(self, read):

    raise NotImplementedError(u"This    datatype    must    implement    a    'binparse'    method.")
