diff --git a/src/casdoor/adapter.py b/src/casdoor/adapter.py
index 5da1759..6c0c165 100644
--- a/src/casdoor/adapter.py
+++ b/src/casdoor/adapter.py
@@ -20,19 +20,19 @@
 
 class Adapter:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.type = "string"
-        self.databaseType = "string"
-        self.host = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.type = ""
+        self.databaseType = ""
+        self.host = ""
         self.port = 0
-        self.user = "string"
-        self.password = "string"
-        self.database = "string"
-        self.table = "string"
-        self.tableNamePrefix = "string"
-        self.isEnabled = True
+        self.user = ""
+        self.password = ""
+        self.database = ""
+        self.table = ""
+        self.tableNamePrefix = ""
+        self.isEnabled = False
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/application.py b/src/casdoor/application.py
index 3fec8d1..e1777a8 100644
--- a/src/casdoor/application.py
+++ b/src/casdoor/application.py
@@ -23,14 +23,14 @@
 
 class ProviderItem:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.canSignUp = True
-        self.canSignIn = True
-        self.canUnlink = True
-        self.prompted = True
-        self.alertType = "string"
-        self.rule = "string"
+        self.owner = ""
+        self.name = ""
+        self.canSignUp = False
+        self.canSignIn = False
+        self.canUnlink = False
+        self.prompted = False
+        self.alertType = ""
+        self.rule = ""
         self.provider = Provider
 
     def __str__(self):
@@ -42,11 +42,11 @@ def to_dict(self) -> dict:
 
 class SignupItem:
     def __init__(self):
-        self.name = "string"
-        self.visible = True
-        self.required = True
-        self.prompted = True
-        self.rule = "string"
+        self.name = ""
+        self.visible = False
+        self.required = False
+        self.prompted = False
+        self.rule = ""
 
     def __str__(self):
         return str(self.__dict__)
@@ -57,43 +57,43 @@ def to_dict(self) -> dict:
 
 class Application:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.displayName = "string"
-        self.logo = "string"
-        self.homepageUrl = "string"
-        self.description = "string"
-        self.organization = "string"
-        self.cert = "string"
-        self.enablePassword = True
-        self.enableSignUp = True
-        self.enableSigninSession = True
-        self.enableAutoSignin = True
-        self.enableCodeSignin = True
-        self.enableSamlCompress = True
-        self.enableWebAuthn = True
-        self.enableLinkWithEmail = True
-        self.orgChoiceMode = "string"
-        self.samlReplyUrl = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.displayName = ""
+        self.logo = ""
+        self.homepageUrl = ""
+        self.description = ""
+        self.organization = ""
+        self.cert = ""
+        self.enablePassword = False
+        self.enableSignUp = False
+        self.enableSigninSession = False
+        self.enableAutoSignin = False
+        self.enableCodeSignin = False
+        self.enableSamlCompress = False
+        self.enableWebAuthn = False
+        self.enableLinkWithEmail = False
+        self.orgChoiceMode = ""
+        self.samlReplyUrl = ""
         self.providers = [ProviderItem]
         self.signupItems = [SignupItem]
-        self.grantTypes = ["string"]
+        self.grantTypes = [""]
         self.organizationObj = Organization
-        self.tags = ["string"]
-        self.clientId = "string"
-        self.clientSecret = "string"
-        self.redirectUris = ["string"]
-        self.tokenFormat = "string"
+        self.tags = [""]
+        self.clientId = ""
+        self.clientSecret = ""
+        self.redirectUris = [""]
+        self.tokenFormat = ""
         self.expireInHours = 0
         self.refreshExpireInHours = 0
-        self.signupUrl = "string"
-        self.signinUrl = "string"
-        self.forgetUrl = "string"
-        self.affiliationUrl = "string"
-        self.termsOfUse = "string"
-        self.signupHtml = "string"
-        self.signinHtml = "string"
+        self.signupUrl = ""
+        self.signinUrl = ""
+        self.forgetUrl = ""
+        self.affiliationUrl = ""
+        self.termsOfUse = ""
+        self.signupHtml = ""
+        self.signinHtml = ""
         self.themeData = ThemeData
 
     def __str__(self):
diff --git a/src/casdoor/cert.py b/src/casdoor/cert.py
index bf2d4eb..4637968 100644
--- a/src/casdoor/cert.py
+++ b/src/casdoor/cert.py
@@ -20,19 +20,19 @@
 
 class Cert:
     def __init__(self):
-        self.name = "string"
-        self.owner = "string"
-        self.createdTime = "string"
-        self.displayName = "string"
-        self.type = "string"
-        self.scope = "string"
-        self.cryptoAlgorithm = "string"
+        self.name = ""
+        self.owner = ""
+        self.createdTime = ""
+        self.displayName = ""
+        self.type = ""
+        self.scope = ""
+        self.cryptoAlgorithm = ""
         self.bitSize = 0
         self.expireInYears = 0
-        self.certificate = "string"
-        self.privateKey = "string"
-        self.authorityPublicKey = "string"
-        self.authorityRootPublicKey = "string"
+        self.certificate = ""
+        self.privateKey = ""
+        self.authorityPublicKey = ""
+        self.authorityRootPublicKey = ""
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/enforcer.py b/src/casdoor/enforcer.py
index 57800ba..d05b2bf 100644
--- a/src/casdoor/enforcer.py
+++ b/src/casdoor/enforcer.py
@@ -20,15 +20,15 @@
 
 class Enforcer:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.updatedTime = "string"
-        self.displayName = "string"
-        self.description = "string"
-        self.model = "string"
-        self.adapter = "string"
-        self.isEnabled = True
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.updatedTime = ""
+        self.displayName = ""
+        self.description = ""
+        self.model = ""
+        self.adapter = ""
+        self.isEnabled = False
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/group.py b/src/casdoor/group.py
index c43cb9a..b92fe3b 100644
--- a/src/casdoor/group.py
+++ b/src/casdoor/group.py
@@ -22,21 +22,21 @@
 
 class Group:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.updatedTime = "string"
-        self.displayName = "string"
-        self.manager = "string"
-        self.contactEmail = "string"
-        self.type = "string"
-        self.parentId = "string"
-        self.isTopGroup = True
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.updatedTime = ""
+        self.displayName = ""
+        self.manager = ""
+        self.contactEmail = ""
+        self.type = ""
+        self.parentId = ""
+        self.isTopGroup = False
         self.users = [User]
-        self.title = "string"
-        self.key = "string"
+        self.title = ""
+        self.key = ""
         self.children = [Group]
-        self.isEnabled = True
+        self.isEnabled = False
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/model.py b/src/casdoor/model.py
index 24b7814..8aae150 100644
--- a/src/casdoor/model.py
+++ b/src/casdoor/model.py
@@ -22,21 +22,21 @@
 
 class Model:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.updatedTime = "string"
-        self.displayName = "string"
-        self.manager = "string"
-        self.contactEmail = "string"
-        self.type = "string"
-        self.parentId = "string"
-        self.isTopModel = True
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.updatedTime = ""
+        self.displayName = ""
+        self.manager = ""
+        self.contactEmail = ""
+        self.type = ""
+        self.parentId = ""
+        self.isTopModel = False
         self.users = [User]
-        self.title = "string"
-        self.key = "string"
+        self.title = ""
+        self.key = ""
         self.children = [Model]
-        self.isEnabled = True
+        self.isEnabled = False
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/organization.py b/src/casdoor/organization.py
index 6fc447d..7156790 100644
--- a/src/casdoor/organization.py
+++ b/src/casdoor/organization.py
@@ -20,10 +20,10 @@
 
 class AccountItem:
     def __init__(self):
-        self.name = "string"
+        self.name = ""
         self.visible = False
-        self.viewRule = "string"
-        self.modifyRule = "string"
+        self.viewRule = ""
+        self.modifyRule = ""
 
     def __str__(self):
         return str(self.__dict__)
@@ -34,8 +34,8 @@ def to_dict(self) -> dict:
 
 class ThemeData:
     def __init__(self):
-        self.themeType = "string"
-        self.colorPrimary = "string"
+        self.themeType = ""
+        self.colorPrimary = ""
         self.borderRadius = 0
         self.isCompact = False
         self.isEnabled = False
@@ -49,8 +49,8 @@ def to_dict(self) -> dict:
 
 class MfaItem:
     def __init__(self):
-        self.name = "string"
-        self.rule = "string"
+        self.name = ""
+        self.rule = ""
 
     def __str__(self):
         return str(self.__dict__)
@@ -61,25 +61,25 @@ def to_dict(self) -> dict:
 
 class Organization:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.displayName = "string"
-        self.websiteUrl = "string"
-        self.favicon = "string"
-        self.passwordType = "string"
-        self.passwordSalt = "string"
-        self.passwordOptions = ["string"]
-        self.countryCodes = ["string"]
-        self.defaultAvatar = "string"
-        self.defaultApplication = "string"
-        self.tags = ["string"]
-        self.languages = ["string"]
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.displayName = ""
+        self.websiteUrl = ""
+        self.favicon = ""
+        self.passwordType = ""
+        self.passwordSalt = ""
+        self.passwordOptions = [""]
+        self.countryCodes = [""]
+        self.defaultAvatar = ""
+        self.defaultApplication = ""
+        self.tags = [""]
+        self.languages = [""]
         self.themeData = ThemeData
-        self.masterPassword = "string"
+        self.masterPassword = ""
         self.initScore = 0
-        self.enableSoftDeletion = True
-        self.isProfilePublic = True
+        self.enableSoftDeletion = False
+        self.isProfilePublic = False
         self.mfaItems = [MfaItem]
         self.accountItems = [AccountItem]
 
diff --git a/src/casdoor/payment.py b/src/casdoor/payment.py
index 46da352..30e6336 100644
--- a/src/casdoor/payment.py
+++ b/src/casdoor/payment.py
@@ -20,33 +20,33 @@
 
 class Payment:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.displayName = "string"
-        self.provider = "string"
-        self.type = "string"
-        self.productName = "string"
-        self.productDisplayName = "string"
-        self.detail = "string"
-        self.tag = "string"
-        self.currency = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.displayName = ""
+        self.provider = ""
+        self.type = ""
+        self.productName = ""
+        self.productDisplayName = ""
+        self.detail = ""
+        self.tag = ""
+        self.currency = ""
         self.price = 0.0
-        self.returnUrl = "string"
-        self.user = "string"
-        self.personName = "string"
-        self.personIdCard = "string"
-        self.personEmail = "string"
-        self.personPhone = "string"
-        self.invoiceType = "string"
-        self.invoiceTitle = "string"
-        self.invoiceTaxId = "string"
-        self.invoiceRemark = "string"
-        self.invoiceUrl = "string"
-        self.outOrderId = "string"
-        self.payUrl = "string"
-        self.state = "string"
-        self.message = "string"
+        self.returnUrl = ""
+        self.user = ""
+        self.personName = ""
+        self.personIdCard = ""
+        self.personEmail = ""
+        self.personPhone = ""
+        self.invoiceType = ""
+        self.invoiceTitle = ""
+        self.invoiceTaxId = ""
+        self.invoiceRemark = ""
+        self.invoiceUrl = ""
+        self.outOrderId = ""
+        self.payUrl = ""
+        self.state = ""
+        self.message = ""
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/permisssion.py b/src/casdoor/permisssion.py
index a2854f3..ffa85d8 100644
--- a/src/casdoor/permisssion.py
+++ b/src/casdoor/permisssion.py
@@ -20,25 +20,25 @@
 
 class Permission:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.displayName = "string"
-        self.description = "string"
-        self.users = ["string"]
-        self.roles = ["string"]
-        self.domains = ["string"]
-        self.model = "string"
-        self.adapter = "string"
-        self.resourceType = "string"
-        self.resources = ["string"]
-        self.actions = ["string"]
-        self.effect = "string"
-        self.isEnabled = True
-        self.submitter = "string"
-        self.approver = "string"
-        self.approveTime = "string"
-        self.state = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.displayName = ""
+        self.description = ""
+        self.users = [""]
+        self.roles = [""]
+        self.domains = [""]
+        self.model = ""
+        self.adapter = ""
+        self.resourceType = ""
+        self.resources = [""]
+        self.actions = [""]
+        self.effect = ""
+        self.isEnabled = False
+        self.submitter = ""
+        self.approver = ""
+        self.approveTime = ""
+        self.state = ""
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/plan.py b/src/casdoor/plan.py
index 54e5605..9da7f93 100644
--- a/src/casdoor/plan.py
+++ b/src/casdoor/plan.py
@@ -20,17 +20,17 @@
 
 class Plan:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.displayName = "string"
-        self.description = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.displayName = ""
+        self.description = ""
         self.pricePerMonth = 0.0
         self.pricePerYear = 0.0
-        self.currency = "string"
-        self.isEnabled = True
-        self.role = "string"
-        self.options = ["string"]
+        self.currency = ""
+        self.isEnabled = False
+        self.role = ""
+        self.options = [""]
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/pricing.py b/src/casdoor/pricing.py
index 11e24b4..46dd978 100644
--- a/src/casdoor/pricing.py
+++ b/src/casdoor/pricing.py
@@ -20,19 +20,19 @@
 
 class Pricing:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.displayName = "string"
-        self.description = "string"
-        self.plans = ["string"]
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.displayName = ""
+        self.description = ""
+        self.plans = [""]
         self.isEnabled = False
         self.trialDuration = 0
-        self.application = "string"
-        self.submitter = "string"
-        self.approver = "string"
-        self.approveTime = "string"
-        self.state = "string"
+        self.application = ""
+        self.submitter = ""
+        self.approver = ""
+        self.approveTime = ""
+        self.state = ""
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/product.py b/src/casdoor/product.py
index a4118b4..4865242 100644
--- a/src/casdoor/product.py
+++ b/src/casdoor/product.py
@@ -22,21 +22,21 @@
 
 class Product:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.displayName = "string"
-        self.image = "string"
-        self.detail = "string"
-        self.description = "string"
-        self.tag = "string"
-        self.currency = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.displayName = ""
+        self.image = ""
+        self.detail = ""
+        self.description = ""
+        self.tag = ""
+        self.currency = ""
         self.price = 0.0
         self.quantity = 0
         self.sold = 0
-        self.providers = ["string"]
-        self.returnUrl = "string"
-        self.state = "string"
+        self.providers = [""]
+        self.returnUrl = ""
+        self.state = ""
         self.providerObjs = [Provider]
 
     def __str__(self):
diff --git a/src/casdoor/provider.py b/src/casdoor/provider.py
index 2141b10..9d03a77 100644
--- a/src/casdoor/provider.py
+++ b/src/casdoor/provider.py
@@ -20,45 +20,45 @@
 
 class Provider:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.displayName = "string"
-        self.category = "string"
-        self.type = "string"
-        self.subType = "string"
-        self.method = "string"
-        self.clientId = "string"
-        self.clientSecret = "string"
-        self.clientId2 = "string"
-        self.clientSecret2 = "string"
-        self.cert = "string"
-        self.customAuthUrl = "string"
-        self.customTokenUrl = "string"
-        self.customUserInfoUrl = "string"
-        self.customLogo = "string"
-        self.scopes = "string"
-        self.userMapping = {"string": "string"}
-        self.host = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.displayName = ""
+        self.category = ""
+        self.type = ""
+        self.subType = ""
+        self.method = ""
+        self.clientId = ""
+        self.clientSecret = ""
+        self.clientId2 = ""
+        self.clientSecret2 = ""
+        self.cert = ""
+        self.customAuthUrl = ""
+        self.customTokenUrl = ""
+        self.customUserInfoUrl = ""
+        self.customLogo = ""
+        self.scopes = ""
+        self.userMapping = {"": ""}
+        self.host = ""
         self.port = 0
-        self.disableSsl = True
-        self.title = "string"
-        self.content = "string"
-        self.receiver = "string"
-        self.regionId = "string"
-        self.signName = "string"
-        self.templateCode = "string"
-        self.appId = "string"
-        self.endpoint = "string"
-        self.intranetEndpoint = "string"
-        self.domain = "string"
-        self.bucket = "string"
-        self.pathPrefix = "string"
-        self.metadata = "string"
-        self.idP = "string"
-        self.issuerUrl = "string"
+        self.disableSsl = False
+        self.title = ""
+        self.content = ""
+        self.receiver = ""
+        self.regionId = ""
+        self.signName = ""
+        self.templateCode = ""
+        self.appId = ""
+        self.endpoint = ""
+        self.intranetEndpoint = ""
+        self.domain = ""
+        self.bucket = ""
+        self.pathPrefix = ""
+        self.metadata = ""
+        self.idP = ""
+        self.issuerUrl = ""
         self.enableSignAuthnRequest = False
-        self.providerUrl = "string"
+        self.providerUrl = ""
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/resource.py b/src/casdoor/resource.py
index 67bf9c5..7a2a4b8 100644
--- a/src/casdoor/resource.py
+++ b/src/casdoor/resource.py
@@ -20,20 +20,20 @@
 
 class Resource:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.user = "string"
-        self.provider = "string"
-        self.application = "string"
-        self.tag = "string"
-        self.parent = "string"
-        self.fileName = "string"
-        self.fileType = "string"
-        self.fileFormat = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.user = ""
+        self.provider = ""
+        self.application = ""
+        self.tag = ""
+        self.parent = ""
+        self.fileName = ""
+        self.fileType = ""
+        self.fileFormat = ""
         self.fileSize = 0
-        self.url = "string"
-        self.description = "string"
+        self.url = ""
+        self.description = ""
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/role.py b/src/casdoor/role.py
index 21b6644..a496a5a 100644
--- a/src/casdoor/role.py
+++ b/src/casdoor/role.py
@@ -20,15 +20,15 @@
 
 class Role:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.displayName = "string"
-        self.description = "string"
-        self.users = ["string"]
-        self.roles = ["string"]
-        self.domains = ["string"]
-        self.isEnabled = True
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.displayName = ""
+        self.description = ""
+        self.users = [""]
+        self.roles = [""]
+        self.domains = [""]
+        self.isEnabled = False
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/session.py b/src/casdoor/session.py
index 73d455c..d49907f 100644
--- a/src/casdoor/session.py
+++ b/src/casdoor/session.py
@@ -20,11 +20,11 @@
 
 class Session:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.application = "string"
-        self.createdTime = "string"
-        self.sessionId = ["string"]
+        self.owner = ""
+        self.name = ""
+        self.application = ""
+        self.createdTime = ""
+        self.sessionId = [""]
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/subscription.py b/src/casdoor/subscription.py
index a9562fa..bcb9ed5 100644
--- a/src/casdoor/subscription.py
+++ b/src/casdoor/subscription.py
@@ -21,21 +21,21 @@
 
 class Subscription:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.displayName = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.displayName = ""
         self.startDate = datetime.now()
         self.endDate = datetime.now()
         self.duration = 0
-        self.description = "string"
-        self.user = "string"
-        self.plan = "string"
-        self.isEnabled = True
-        self.submitter = "string"
-        self.approver = "string"
-        self.approveTime = "string"
-        self.state = "string"
+        self.description = ""
+        self.user = ""
+        self.plan = ""
+        self.isEnabled = False
+        self.submitter = ""
+        self.approver = ""
+        self.approveTime = ""
+        self.state = ""
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/syncer.py b/src/casdoor/syncer.py
index 22180b2..e68ba10 100644
--- a/src/casdoor/syncer.py
+++ b/src/casdoor/syncer.py
@@ -20,12 +20,12 @@
 
 class TableColumn:
     def __init__(self):
-        self.name = "string"
-        self.type = "string"
-        self.casdoorName = "string"
-        self.isKey = True
-        self.isHashed = True
-        self.values = ["string"]
+        self.name = ""
+        self.type = ""
+        self.casdoorName = ""
+        self.isKey = False
+        self.isHashed = False
+        self.values = [""]
 
     def __str__(self):
         return str(self.__dict__)
@@ -36,26 +36,26 @@ def to_dict(self) -> dict:
 
 class Syncer:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.organization = "string"
-        self.type = "string"
-        self.host = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.organization = ""
+        self.type = ""
+        self.host = ""
         self.port = 0
-        self.user = "string"
-        self.password = "string"
-        self.databaseType = "string"
-        self.database = "string"
-        self.table = "string"
-        self.tablePrimaryKey = "string"
+        self.user = ""
+        self.password = ""
+        self.databaseType = ""
+        self.database = ""
+        self.table = ""
+        self.tablePrimaryKey = ""
         self.tableColumns = [TableColumn]
-        self.affiliationTable = "string"
-        self.avatarBaseUrl = "string"
-        self.errorText = "string"
+        self.affiliationTable = ""
+        self.avatarBaseUrl = ""
+        self.errorText = ""
         self.syncInterval = 0
-        self.isReadOnly = True
-        self.isEnabled = True
+        self.isReadOnly = False
+        self.isEnabled = False
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/token.py b/src/casdoor/token.py
index dd1f5c2..6269940 100644
--- a/src/casdoor/token.py
+++ b/src/casdoor/token.py
@@ -20,20 +20,20 @@
 
 class Token:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.application = "string"
-        self.organization = "string"
-        self.user = "string"
-        self.code = "string"
-        self.accessToken = "string"
-        self.refreshToken = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.application = ""
+        self.organization = ""
+        self.user = ""
+        self.code = ""
+        self.accessToken = ""
+        self.refreshToken = ""
         self.expiresIn = 0
-        self.scope = "string"
-        self.tokenType = "string"
-        self.codeChallenge = "string"
-        self.codeIsUsed = True
+        self.scope = ""
+        self.tokenType = ""
+        self.codeChallenge = ""
+        self.codeIsUsed = False
         self.codeExpireIn = 0
 
     def __str__(self):
diff --git a/src/casdoor/user.py b/src/casdoor/user.py
index 2411b5d..1b951ed 100644
--- a/src/casdoor/user.py
+++ b/src/casdoor/user.py
@@ -20,36 +20,36 @@
 
 class User:
     def __init__(self):
-        self.address = ["string"]
-        self.affiliation = "string"
-        self.avatar = "string"
-        self.createdTime = "string"
-        self.dingtalk = "string"
-        self.displayName = "string"
-        self.email = "string"
-        self.facebook = "string"
-        self.gitee = "string"
-        self.github = "string"
-        self.google = "string"
-        self.hash = "string"
-        self.id = "string"
-        self.isAdmin = True
-        self.isForbidden = True
-        self.isGlobalAdmin = True
-        self.language = "string"
-        self.name = "string"
-        self.owner = "string"
-        self.password = "string"
-        self.phone = "string"
-        self.preHash = "string"
-        self.qq = "string"
+        self.address = [""]
+        self.affiliation = ""
+        self.avatar = ""
+        self.createdTime = ""
+        self.dingtalk = ""
+        self.displayName = ""
+        self.email = ""
+        self.facebook = ""
+        self.gitee = ""
+        self.github = ""
+        self.google = ""
+        self.hash = ""
+        self.id = ""
+        self.isAdmin = False
+        self.isForbidden = False
+        self.isGlobalAdmin = False
+        self.language = ""
+        self.name = ""
+        self.owner = ""
+        self.password = ""
+        self.phone = ""
+        self.preHash = ""
+        self.qq = ""
         self.score = 0
-        self.signupApplication = "string"
-        self.tag = "string"
-        self.type = "string"
-        self.updatedTime = "string"
-        self.wechat = "string"
-        self.weibo = "string"
+        self.signupApplication = ""
+        self.tag = ""
+        self.type = ""
+        self.updatedTime = ""
+        self.wechat = ""
+        self.weibo = ""
 
     def __str__(self):
         return str(self.__dict__)
diff --git a/src/casdoor/webhook.py b/src/casdoor/webhook.py
index 1b2262a..cb654e9 100644
--- a/src/casdoor/webhook.py
+++ b/src/casdoor/webhook.py
@@ -22,26 +22,26 @@
 
 class Webhook:
     def __init__(self):
-        self.owner = "string"
-        self.name = "string"
-        self.createdTime = "string"
-        self.organization = "string"
-        self.type = "string"
-        self.host = "string"
+        self.owner = ""
+        self.name = ""
+        self.createdTime = ""
+        self.organization = ""
+        self.type = ""
+        self.host = ""
         self.port = 0
-        self.user = "string"
-        self.password = "string"
-        self.databaseType = "string"
-        self.database = "string"
-        self.table = "string"
-        self.tablePrimaryKey = "string"
+        self.user = ""
+        self.password = ""
+        self.databaseType = ""
+        self.database = ""
+        self.table = ""
+        self.tablePrimaryKey = ""
         self.tableColumns = [TableColumn]
-        self.affiliationTable = "string"
-        self.avatarBaseUrl = "string"
-        self.errorText = "string"
+        self.affiliationTable = ""
+        self.avatarBaseUrl = ""
+        self.errorText = ""
         self.syncInterval = 0
-        self.isReadOnly = True
-        self.isEnabled = True
+        self.isReadOnly = False
+        self.isEnabled = False
 
     def __str__(self):
         return str(self.__dict__)