code: def _pauli_dot(coeffs: Sequence[float], ops: Sequence[Operator]):
      pauli_words = defaultdict(lambda: 0)
      for coeff, op in zip(coeffs, ops):
          sentence = qml.pauli.pauli_sentence(op)
          for pw in sentence:
              pauli_words[pw] += sentence[pw] * coeff
  
      return qml.pauli.PauliSentence(pauli_words)
  
imports: from collections import defaultdict
  from typing import Sequence, Union, Callable
  import pennylane
  from pennylane.operation import Operator, Tensor
  from pennylane.pulse import ParametrizedHamiltonian
label_desc: Use image node_id 2 for calling a global function with example usage: _pauli_dot(coeffs, ops) and returns: qml