Set exponent bias of floating-point data type
H5T.set_ebias(type_id,ebias)
H5T.set_ebias(type_id,ebias) sets the exponent
bias of a floating-point type. type_id is a data
type identifier. ebias is an exponent bias value.
type_id = H5T.copy('H5T_NATIVE_FLOAT');
H5T.set_size(type_id,32);
H5T.set_ebias(type_id,99);