how to freez multiple axis in rotationConstraint unity code example

Example 1: rigidbody freeze position through code

rigidbody.constraints = RigidbodyConstraints.FreezeRotationX | RigidbodyConstraints.FreezeRotationZ;

Example 2: how o free contraint in unity from script

m_Rigidbody.constraints = RigidbodyConstraints.None;