amazon web services – Is it necessary to implement a credentials cache when using fromTemporaryCredentials to instantiate an AWS SDK v3 client?

import { DynamoDBClient } from '@aws-sdk/client-dynamodb'
import { fromTemporaryCredentials } from '@aws-sdk/credential-providers'
import { DynamoDBDocumentClient } from '@aws-sdk/lib-dynamodb'

const ddbClient = new DynamoDBClient({
  credentials: fromTemporaryCredentials({
    params: {
      RoleArn: ROLE_ARN,
      RoleSessionName: ROLE_SESSION_NAME,
    },
  })
})

const ddbDocClient = DynamoDBDocumentClient.from(
  ddbClient,
  {},
)

Does the client receive the credential provider function and handle it based on the token’s duration or does it always recreate the token? Compromising the rate limit?