generated: '2026-07-11' method: derived source: openapi/amazon-cognito-identity-pools-openapi.yml, openapi/amazon-cognito-user-pools-openapi.yml summary: types: - apiKey api_key_in: - header schemes: - name: hmac type: apiKey in: header parameter: Authorization description: Amazon Signature authorization v4 sources: - openapi/amazon-cognito-identity-pools-openapi.yml - openapi/amazon-cognito-user-pools-openapi.yml