code: def _relative_position_bucket(
      relative_position, num_buckets=32, max_distance=128
  ):
      ret = 0
      n = -relative_position
      n = np.maximum(n, 0)
      # now n is in the range [0, inf)
      max_exact = num_buckets // 2
      is_small = n < max_exact
      val_if_large = max_exact + (
          np.log(
              n.astype(np.float32) / max_exact
              + np.finfo(np.float32).eps
          )
          / np.log(max_distance / max_exact)
          * (num_buckets - max_exact)
      ).astype(np.int32)
      val_if_large = np.minimum(val_if_large, num_buckets - 1)
      ret += np.where(is_small, n, val_if_large)
      return ret
  
imports: import haiku
  import jax
  import jax.numpy
  import numpy
  from einops import rearrange, repeat
  from mesh_transformer.util import f_psum, g_psum, maybe_shard, head_print
  from jax.experimental import PartitionSpec
  from jax.experimental.maps import thread_resources
label_desc: Use image node_id 1 for calling the RelativePositionEmbs obj's underlying member method code with example usage: obj._relative_position_bucket(relative_position, num_buckets, max_distance) and returns: ret