Instant Pot Chicken and Sausage Gumbo

Name: Instant Pot Chicken and Sausage Gumbo
Ingredients: 1 tablespoon vegetable oil; 1.5 pounds skinless, boneless chicken thighs, chopped into bite-sized pieces; 0.5 pound andouille sausage, sliced; 0.5 cup vegetable oil; 0.5 cup all-purpose flour; 1 medium onion, chopped; 1 green bell pepper, chopped; 2 stalks celery, chopped; 1 tablespoon minced garlic; 4 cups chicken broth; 1 (14.5 ounce) can diced tomatoes; 1.5 cups sliced okra; 2 teaspoons black pepper; 1 teaspoon cayenne pepper; 1 teaspoon dried thyme; 1 teaspoon Creole seasoning; 1 teaspoon Worcestershire sauce