{"schema_definition":"type Query { divide(a: Int!, b: Int!): Int! }","resolver_code":"Query: { divide: (_, {a,b}) => { if (b===0) throw new Error('division by zero'); return a/b; } }","sample_query":"{ divide(a: 10, b: 0) }","expected_response":"{\"errors\": [{\"message\": \"division by zero\"}]}"}