message: Custom properties were updated to reflect all the possible values
diff: "additionalProperties": {
  "type": "string"
  },
  - "description": "Custom properties of the API Management service. Setting `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TripleDes168` will disable the cipher TLS_RSA_WITH_3DES_EDE_CBC_SHA for all TLS(1.0, 1.1 and 1.2). Setting `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls11` can be used to disable just TLS 1.1 and setting `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls10` can be used to disable TLS 1.0 on an API Management service."
  + "description": "Custom properties of the API Management service.</br>Setting `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TripleDes168` will disable the cipher TLS_RSA_WITH_3DES_EDE_CBC_SHA for all TLS(1.0, 1.1 and 1.2).</br>Setting `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls11` can be used to disable just TLS 1.1.</br>Setting `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls10` can be used to disable TLS 1.0 on an API Management service.</br>Setting `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls11` can be used to disable just TLS 1.1 for communications with backends.</br>Setting `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls10` can be used to disable TLS 1.0 for communications with backends.</br>Setting `Microsoft.WindowsAzure.ApiManagement.Gateway.Protocols.Server.Http2` can be used to enable HTTP2 protocol on an API Management service.</br>Not specifying any of these properties on PATCH operation will reset omitted properties' values to their defaults. For all the settings except Http2 the default value is `True` if the service was created on or before April 1st 2018 and `False` otherwise. Http2 setting's default value is `False`."
  },
  "certificates": {
  "type": "array",
  