diff --git a/model/meta/MetaCryptoType.go b/model/meta/MetaCryptoType.go
index bc2a90d..2ae5bd9 100644
--- a/model/meta/MetaCryptoType.go
+++ b/model/meta/MetaCryptoType.go
@@ -83,6 +83,10 @@ var (
 	}
 )
 
+func (e MetaCryptoTypeEnum) String() string {
+	return metaCryptoTypeEnumID[e]
+}
+
 func ToMetaCryptoTypeEnum(v *MetaCryptoType) MetaCryptoTypeEnum {
 	return metaCryptoTypeEnumKey[v.Key]
 }
diff --git a/model/meta/MetaIPType.go b/model/meta/MetaIPType.go
index f3cbbae..c2e413d 100644
--- a/model/meta/MetaIPType.go
+++ b/model/meta/MetaIPType.go
@@ -32,6 +32,10 @@ var (
 	}
 )
 
+func (e MetaIPTypeEnum) String() string {
+	return metaIPTypeEnumID[e]
+}
+
 func ToMetaIPTypeEnum(v *MetaIPType) MetaIPTypeEnum {
 	return metaIPTypeEnumKey[v.Key]
 }
diff --git a/model/meta/MetaInfraType.go b/model/meta/MetaInfraType.go
index d33ddd3..c93bba4 100644
--- a/model/meta/MetaInfraType.go
+++ b/model/meta/MetaInfraType.go
@@ -35,6 +35,10 @@ var (
 	}
 )
 
+func (e MetaInfraTypeEnum) String() string {
+	return metaInfraTypeEnumID[e]
+}
+
 func ToMetaInfraTypeEnum(v *MetaInfraType) MetaInfraTypeEnum {
 	return metaInfraTypeEnumKey[v.Key]
 }
diff --git a/model/meta/MetaMemberStatus.go b/model/meta/MetaMemberStatus.go
index f9d7c06..c524b90 100644
--- a/model/meta/MetaMemberStatus.go
+++ b/model/meta/MetaMemberStatus.go
@@ -38,6 +38,10 @@ var (
 	}
 )
 
+func (e MetaMemberStatusEnum) String() string {
+	return metaMemberStatusEnumID[e]
+}
+
 func ToMetaMemberStatusEnum(v *MetaMemberStatus) MetaMemberStatusEnum {
 	return metaMemberStatusEnumKey[v.Key]
 }
diff --git a/model/meta/MetaNoAuthProbeStatus.go b/model/meta/MetaNoAuthProbeStatus.go
index 555f2ed..6237c19 100644
--- a/model/meta/MetaNoAuthProbeStatus.go
+++ b/model/meta/MetaNoAuthProbeStatus.go
@@ -35,6 +35,10 @@ var (
 	}
 )
 
+func (e NoAuthProbeStatusEnum) String() string {
+	return noAuthProbeStatusEnumID[e]
+}
+
 func ToNoAuthProbeStatusEnum(v *MetaNoAuthProbeStatus) NoAuthProbeStatusEnum {
 	return noAuthProbeStatusEnumKey[v.Key]
 }
diff --git a/model/meta/MetaPortType.go b/model/meta/MetaPortType.go
index 7c3fde8..ca7bb00 100644
--- a/model/meta/MetaPortType.go
+++ b/model/meta/MetaPortType.go
@@ -32,6 +32,10 @@ var (
 	}
 )
 
+func (e MetaPortTypeEnum) String() string {
+	return metaPortTypeEnumID[e]
+}
+
 func ToMetaPortTypeEnum(v *MetaPortType) MetaPortTypeEnum {
 	return metaPortTypeEnumKey[v.Key]
 }
diff --git a/model/meta/MetaProbeStatus.go b/model/meta/MetaProbeStatus.go
index b88ee05..51c304a 100644
--- a/model/meta/MetaProbeStatus.go
+++ b/model/meta/MetaProbeStatus.go
@@ -32,6 +32,10 @@ var (
 	}
 )
 
+func (e MetaProbeStatusEnum) String() string {
+	return metaProbeStatusEnumID[e]
+}
+
 func ToMetaProbeStatusEnum(v *MetaProbeStatus) MetaProbeStatusEnum {
 	return metaProbeStatusEnumKey[v.Key]
 }
diff --git a/model/meta/MetaTargetHostType.go b/model/meta/MetaTargetHostType.go
index a1d2e52..974a6aa 100644
--- a/model/meta/MetaTargetHostType.go
+++ b/model/meta/MetaTargetHostType.go
@@ -20,6 +20,10 @@ var (
 	}
 )
 
+func (e MetaTargetHostTypeEnum) String() string {
+	return metaTargetHostTypeEnumID[e]
+}
+
 func ToMetaTargetHostTypeEnum(v *MetaTargetHostType) MetaTargetHostTypeEnum {
 	return metaTargetHostTypeEnumKey[v.Key]
 }
diff --git a/model/meta/MetaTargetServiceType.go b/model/meta/MetaTargetServiceType.go
index d52352b..6276079 100644
--- a/model/meta/MetaTargetServiceType.go
+++ b/model/meta/MetaTargetServiceType.go
@@ -20,6 +20,10 @@ var (
 	}
 )
 
+func (e MetaTargetServiceTypeEnum) String() string {
+	return metaTargetServiceTypeEnumID[e]
+}
+
 func ToMetaTargetServiceTypeEnum(v *MetaTargetServiceType) MetaTargetServiceTypeEnum {
 	return metaTargetServiceTypeEnumKey[v.Key]
 }
diff --git a/model/meta/MetaTargetZoneType.go b/model/meta/MetaTargetZoneType.go
index ab9d9a9..77af1ba 100644
--- a/model/meta/MetaTargetZoneType.go
+++ b/model/meta/MetaTargetZoneType.go
@@ -23,6 +23,10 @@ var (
 	}
 )
 
+func (e MetaTargetZoneTypeEnum) String() string {
+	return metaTargetZoneTypeEnumID[e]
+}
+
 func ToMetaTargetZoneTypeEnum(v *MetaTargetZoneType) MetaTargetZoneTypeEnum {
 	return metaTargetZoneTypeEnumKey[v.Key]
 }