class_docstr: Creates a very simple dropdown listing choices from which entries can be selected.
  Preprocessing: Preprocessing: passes the value of the selected dropdown entry as a {str}.
  Postprocessing: expects a {str} corresponding to the value of the dropdown entry to be selected.
  Examples-format: a {str} representing the drop down value to select.
  Demos: sentence_builder, titanic_survival
code: def process_example(self, input_data):
      return next(
          (c[0] for c in self.choices if c[1] == input_data), None
      )
  
file_path: gradio/gradio/_simple_templates/simpledropdown.py
imports: from __future__ import annotations
  import warnings
  from typing import Any, Callable
  from gradio.components.base import FormComponent
  from gradio.events import Events
label_desc: Use image node_id 7 for calling the SimpleDropdown obj's underlying member method code with example usage: obj.process_example(input_data) and returns: next