code: def post_arrow_generic(
      self, sub_path: str, tok: str, arr: pa.Table, opts=""
  ) -> requests.Response:
      buf = self.arrow_to_buffer(arr)
  
      base_path = self.server_base_path
  
      url = f"{base_path}/{sub_path}"
      if len(opts) > 0:
          url = f"{url}?{opts}"
      resp = requests.post(
          url,
          verify=self.certificate_validation,
          headers={"Authorization": f"Bearer {tok}"},
          data=buf,
      )
  
      if resp.status_code != requests.codes.ok:
          resp.raise_for_status()
  
      return resp
  
imports: from typing import List, Optional
  import io, pyarrow, requests, sys
  from graphistry.privacy import Mode, Privacy
  from .ArrowFileUploader import ArrowFileUploader
  from .util import setup_logger
label_desc: Use image node_id 48 for calling the ArrowUploader obj's underlying member method code with example usage: obj.post_arrow_generic(sub_path, tok, arr, opts) and returns: resp