docstr: Get the dtype the mutable tensor.
  
  Returns
  -------
      np.dtype or str
docstr_tok: ["Get","the","dtype","the","mutable","tensor",".","Returns","--","--","--","-","np.dtype","or","str"]
code: def dtype(self):
      """
      Get the dtype the mutable tensor.
  
      Returns
      -------
          np.dtype or str
      """
      return self._info.dtype
  
file_path: mars/mars/services/mutable/core.py
imports: import asyncio
label_desc: Use image node_id 4 for calling the MutableTensor obj's underlying member method code with example usage: obj.dtype() and returns: self