class_docstr: Google Palm Vertexai LLM
  BaseGoogle class is extended for Google Palm model using Vertexai.
  The default model support at the moment is text-bison-001.
  However, user can choose to use code-bison-001 too.
docstr: Configure Google VertexAi. Set value `self.vertexai` attribute.
  
  Args:
      project_id (str): GCP Project.
      location (str): Location of Project.
  
  Returns:
      None.
code: def _configure(self, project_id: str, location: str):
      """
      Configure Google VertexAi. Set value `self.vertexai` attribute.
  
      Args:
          project_id (str): GCP Project.
          location (str): Location of Project.
  
      Returns:
          None.
  
      """
  
      err_msg = "Install google-cloud-aiplatform for Google Vertexai"
      vertexai = import_dependency("vertexai", extra=err_msg)
      vertexai.init(project=project_id, location=location)
      self.vertexai = vertexai
  
file_path: pandas-ai/pandasai/llm/google_vertexai.py
imports: from typing import Optional
  from .base import BaseGoogle
  from ..exceptions import UnsupportedModelError
  from ..helpers.optional import import_dependency
label_desc: Use image node_id 2 for calling the GoogleVertexAI obj's underlying member method code with example usage: obj._configure(project_id, location) without return types