code: def relax(self, n=50):
      # speed up with C magic if possible
      relax.relax(
          self.pos,
          self.links,
          self.mrel1,
          self.mrel2,
          self.lengths,
          self.push,
          self.pull,
          n,
      )
      self.relaxed.emit()
  
file_path: pyqtgraph/pyqtgraph/examples/verlet_chain/chain.py
imports: import time
  import numpy
  import pyqtgraph
  from .None import relax
label_desc: Use image node_id 5 for calling the ChainSim obj's underlying member method code with example usage: obj.relax(n) without return types