code: def _aslinearoperator_with_dtype(m):
      m = aslinearoperator(m)
      if not hasattr(m, "dtype"):
          x = np.zeros(m.shape[1])
          m.dtype = (m * x).dtype
      return m
  
imports: import numpy
  import warnings
  from scipy.sparse.linalg._interface import aslinearoperator, LinearOperator
  from scipy.sparse import eye, issparse
  from scipy.linalg import eig, eigh, lu_factor, lu_solve
  from scipy.sparse._sputils import isdense, is_pydata_spmatrix
  from scipy.sparse.linalg import gmres, splu
  from scipy._lib._util import _aligned_zeros
  from scipy._lib._threadsafety import ReentrancyLock
  from .None import _arpack
label_desc: Use image node_id 2 for calling a global function with example usage: _aslinearoperator_with_dtype(m) and returns: m