code: def positions_inbound():
      pos_ = np.array(
          [
              [3.3, 4.4, 2.3],
              [3.7, 5.2, 7.0],
              [2.5, 6.8, 2.3],
              [2.1, 6.9, 4.7],
              [2.7, 3.2, 3.5],
              [2.5, 5.1, 1.2],
          ]
      )
      return pos_
  
file_path: pyswarms/tests/backend/conftest.py
imports: import numpy
  import pytest
  from pyswarms.backend.swarms import Swarm
label_desc: Use image node_id 4 for calling a global function with example usage: positions_inbound() and returns: pos_