code: def from_like_context(ctx, param, value):
      
      if ctx.obj and ctx.obj.get("like") and (value == "like" or ctx.obj.get("all_like")):
          return ctx.obj["like"][param.name]
      else:
          return None
docs: Return the value for an option from the context if the option
      or `--all` is given, else return None.