code: def make_c_gemv_destructive(node):
      if isinstance(node.op, CGemv) and not node.op.inplace:
          inputs = list(node.inputs)
          dest = inputs[0]
          if (
              dest.owner
              and isinstance(dest.owner.op, T.AllocEmpty)
              and len(dest.clients) > 1
          ):
              inputs[0] = T.AllocEmpty(dest.dtype)(*dest.owner.inputs)
  
          return [cgemv_inplace(*inputs)]
  
imports: from __future__ import absolute_import, print_function, division
  from theano import config
  from theano.gof.params_type import ParamsType
  from theano.scalar import bool
  from theano.tensor.opt import in2out
  from theano.tensor.blas import ldflags, blas_header_text, blas_header_version
  from theano.tensor.blas import blas_optdb, optdb, local_optimizer
  from theano.tensor.blas import Ger, ger, ger_destructive
  from theano.tensor.blas import Gemv, gemv_inplace, gemv_no_inplace
  from theano.tensor import basic
label_desc: Use image node_id 7 for calling a global function with example usage: make_c_gemv_destructive(node) and returns: list