code: def _check_hierarchy_uses_cluster_before_formed(Z):
      n = Z.shape[0] + 1
      for i in range(0, n - 1):
          if Z[i, 0] >= n + i or Z[i, 1] >= n + i:
              return True
      return False
  
imports: import warnings
  import bisect
  from collections import deque
  import numpy
  from .None import _hierarchy, _optimal_leaf_ordering
  import scipy.spatial.distance
  from scipy._lib._array_api import array_namespace, as_xparray, copy
  from scipy._lib._disjoint_set import DisjointSet
label_desc: Use image node_id 22 for calling a global function with example usage: _check_hierarchy_uses_cluster_before_formed(Z) and returns: False, True