我们可以在使用AWS CLI时通过 JSON 文件指定选项以创建用户池，以防止无法设置某些属性的问题。

例如，假设我们需要创建一个工具栏，它应该支持电话号码作为用户名，并需要自定义策略名称和返回属性。在此示例中，我们将创建一个名为“my-user-pool”的用户池，并将选项存储在名为“options.json”的文件中：

options.json:

{
    "AllowedOAuthFlows": ["implicit"],
    "UsernameAttributes": ["phone_number"],
    "Policies": {
        "PasswordPolicy": {
            "MinimumLength": 8,
            "RequireLowercase": true,
            "RequireUppercase": true,
            "RequireNumbers": true,
            "RequireSymbols": true
        }
    },
    "Schema": [
        {
            "Name": "phone_number",
            "AttributeDataType": "String",
            "Mutable": true,
            "Required": true
        }
    ],
    "VerificationMessageTemplate": {
        "DefaultEmailOption": "CONFIRM_WITH_LINK",
        "EmailMessageByLink": "Please click the link below to verify your email address: {####}",
        "EmailSubjectByLink": "Your verification link",
        "EmailMessageByPlainText": "",
        "EmailSubjectByPlainText": "",
        "SmsMessage": "Your verification code is {####}",
        "EmailMessageBySms": "Your verification code is {####}",
        "EmailSubjectBySms": "Your verification code"
    },
    "AdminCreateUserConfig": {
        "AllowAdminCreateUserOnly": false,
        "InviteMessageTemplate": {
            "EmailMessage": "",
            "EmailSubject": "",
            "SMSMessage": ""
        }
    },
    "UserPoolTags": {
        "id": "my-user-pool"
    },
    "SmsVerificationMessageTemplate": {
        "DefaultSmsOption": "FORCE_SMS",
        "SmsMessage": "Your verification code is {####}"
    },
    "EmailVerificationMessageTemplate": {
        "DefaultEmailOption": "CONFIRM_WITH_CODE",
        "