input: def create_crud_api() -> Flask:
      """Create a basic CRUD API for the BlogPost model with Python/Flask.
      The API should include endpoints for creating a post, getting all posts, getting a single post, editing a post, and deleting a post.
      >>> app = create_crud_api()
      >>> app.config['SQLALCHEMY_DATABASE_URI']
      'sqlite:///test.db'
      """
output:     from flask import Flask, request, jsonify
      from flask_sqlalchemy import SQLAlchemy
  
      app = Flask(__name__)
      app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///test.db'
      db = SQLAlchemy(app)
  
      class BlogPost(db.Model):
          id = db.Column(db.Integer, primary_key=True)
          title = db.Column(db.String(100), nullable=False)
          content = db.Column(db.Text, nullable=False)
  
          def to_dict(self):
              return {
                  'id': self.id,
                  'title': self.title,
                  'content': self.content
              }
  
      @app.route('/posts', methods=['POST'])
      def create_post():
          data = request.get_json()
          new_post = BlogPost(title=data['title'], content=data['content'])
          db.session.add(new_post)
          db.session.commit()
          return jsonify(new_post.to_dict()), 201
  
      @app.route('/posts', methods=['GET'])
      def get_posts():
          posts = BlogPost.query.all()
          return jsonify([post.to_dict() for post in posts])
  
      @app.route('/posts/<int:post_id>', methods=['GET'])
      def get_post(post_id):
          post = BlogPost.query.get_or_404(post_id)
          return jsonify(post.to_dict())
  
      @app.route('/posts/<int:post_id>', methods=['PUT'])
      def update_post(post_id):
          post = BlogPost.query.get_or_404(post_id)
          data = request.get_json()
          post.title = data['title']
          post.content = data['content']
          db.session.commit()
          return jsonify(post.to_dict())
  
      @app.route('/posts/<int:post_id>', methods=['DELETE'])
      def delete_post(post_id):
          post = BlogPost.query.get_or_404(post_id)
          db.session.delete(post)
          db.session.commit()
          return jsonify({'message': 'Post deleted'}), 200
  
      return app