Method diag

ot/backend.py:1704–1705

(self, a, k=0)

        return jnp.meshgrid(a, b)

    def diag(self, a, k=0):
        return jnp.diag(a, k)

    def unique(self, a, return_inverse=False):
        return jnp.unique(a, return_inverse=return_inverse)