code: def clear_gradient_debuggers():
      """Clear all globally registered gradient debuggers."""
      _gradient_debuggers.clear()
  
imports: import re
  import uuid
  from tensorflow.python.debug.lib import debug_data
  from tensorflow.python.debug.lib import debug_graphs
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor
  from tensorflow.python.ops import gen_array_ops
  from tensorflow.python.ops import variables
label_desc: Use image node_id 3 for calling a global function with example usage: clear_gradient_debuggers() without return types