code: def random_insert(circuit, choices, seed=None):
      """Insert a circuit into another quantum circuit.
  
      Explanation
      ===========
  
      random_insert randomly chooses a location in the circuit to insert
      a randomly selected circuit from amongst the given choices.
  
      Parameters
      ==========
  
      circuit : Gate tuple or Mul
          A tuple or Mul of Gates representing a quantum circuit
      choices : list
          Set of circuit choices
      seed : int or list
          seed used for _randrange; to override the random selections, give
          a list two integers, [i, j] where i is the circuit location where
          choice[j] will be inserted.
  
      Notes
      =====
  
      Indices for insertion should be [0, n] if n is the length of the
      circuit.
      """
      from sympy.core.random import _randrange
  
      if not choices:
          return circuit
  
      if isinstance(circuit, Mul):
          circuit = circuit.args
  
      # get the location in the circuit and the element to insert from choices
      randrange = _randrange(seed)
      loc = randrange(len(circuit) + 1)
      choice = choices[randrange(len(choices))]
  
      circuit = list(circuit)
      circuit[loc:loc] = choice
      return tuple(circuit)
  
file_path: sympy/sympy/physics/quantum/circuitutils.py
imports: from functools import reduce
  from sympy.core.sorting import default_sort_key
  from sympy.core.containers import Tuple
  from sympy.core.mul import Mul
  from sympy.core.symbol import Symbol
  from sympy.core.sympify import sympify
  from sympy.utilities import numbered_symbols
  from sympy.physics.quantum.gate import Gate
label_desc: Use image node_id 8 for calling a global function with example usage: random_insert(circuit, choices, seed) and returns: tuple, circuit