(p)
namespace_scope : '*'
                       | IDENTIFIER
namespace_scope : '*'
                       | IDENTIFIER
namespace_scope : * | IDENTIFIER
def p_namespace_scope(p):
    '''namespace_scope : '*'
                       | IDENTIFIER'''
    p[0] = p[1]
def p_namespace_scope ( p ) : p [ 0 ] = p [ 1 ]