Return a nice string representation of the object.
If the argument is a string, the return value is the same object.
BNODE_BASE_LEN = 32
int(x[, base]) -> integer
Convert a string or number to an integer, if possible. A floating point
argument will be truncated towards zero (this does not include a string
representation of a floating point number!) When converting a string, use
the optional base. It is an error to supply a base when converting a
non-string.