aws_access_key_id:
description: "您的 AWS 访问密钥 ID。如果提供，您还必须提供 `aws_secret_access_key` 且**不得**提供 `profile_name`。"
required: true
type: string
aws_secret_access_key:
description: "您的 AWS 秘密访问密钥。如果提供，您还必须提供 `aws_access_key_id` 且**不得**提供 `profile_name`。"
required: true
type: string
profile_name:
description: 凭证配置文件名称。如果提供，您**不得**提供 `aws_access_key_id` 或 `aws_secret_access_key`。
required: false
type: string
region_name:
description: 要连接的区域标识符。
required: false
type: string
default: us-east-1
text_type:
description: "默认情况下将消息解释为 `text` 还是 [`ssml`](https://docs.aws.amazon.com/polly/latest/dg/ssml.html)。"
required: false
type: string
default: text
voice:
description: 默认用于生成语音的[语音名称/ID](https://docs.aws.amazon.com/polly/latest/dg/voicelist.html)。
required: false
type: string
output_format:
description: "覆盖默认输出格式。可以是 `mp3`、`ogg_vorbis` 或 `pcm`。"
required: false
type: string
default: mp3
sample_rate:
description: "覆盖默认采样率。可能的值有：8000、16000、22050、24000。"
required: false
type: string
default: MP3 和 Ogg Vorbis 为 22050，pcm 为 16000
engine:
description: "覆盖默认引擎。可以是 [`standard`](https://docs.aws.amazon.com/polly/latest/dg/standard-voices.html)、[`neural`](https://docs.aws.amazon.com/polly/latest/dg/neural-voices.html)、[`long-form`](https://docs.aws.amazon.com/polly/latest/dg/long-form-voices.html) 或 [`generative`](https://docs.aws.amazon.com/polly/latest/dg/generative-voices.html) 之一。请参阅 Amazon 文档了解兼容的区域和语音。"
required: false
type: string
default: standard
