code: def process_doc(doc, classpath=None):
      """
      Convert the constituency trees in the document,
      then attach the resulting dependencies to the sentences
      """
      request = build_request(doc)
      response = send_converter_request(request, classpath=classpath)
      attach_dependencies(doc, response)
  
file_path: stanza/stanza/server/dependency_converter.py
imports: import stanza
  from stanza.protobuf import DependencyConverterRequest, DependencyConverterResponse
  from stanza.server.java_protobuf_requests import send_request, build_tree, JavaProtobufContext
label_desc: Use image node_id 3 for calling a global function with example usage: process_doc(doc, classpath) without return types