diff --git a/REFERENCE.md b/REFERENCE.md
index a9b38b42a..e93baeab2 100644
--- a/REFERENCE.md
+++ b/REFERENCE.md
@@ -629,7 +629,7 @@ Default value: `'on'`
 
 ##### <a name="-nginx--accept_mutex_delay"></a>`accept_mutex_delay`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -637,7 +637,7 @@ Default value: `'500ms'`
 
 ##### <a name="-nginx--client_body_buffer_size"></a>`client_body_buffer_size`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -653,7 +653,7 @@ Default value: `'10m'`
 
 ##### <a name="-nginx--client_body_timeout"></a>`client_body_timeout`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -661,7 +661,7 @@ Default value: `'60s'`
 
 ##### <a name="-nginx--send_timeout"></a>`send_timeout`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -669,7 +669,7 @@ Default value: `'60s'`
 
 ##### <a name="-nginx--lingering_timeout"></a>`lingering_timeout`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -773,7 +773,7 @@ Default value: `'off'`
 
 ##### <a name="-nginx--gzip_buffers"></a>`gzip_buffers`
 
-Data type: `Any`
+Data type: `Optional[String]`
 
 
 
@@ -781,7 +781,7 @@ Default value: `undef`
 
 ##### <a name="-nginx--gzip_comp_level"></a>`gzip_comp_level`
 
-Data type: `Any`
+Data type: `Integer`
 
 
 
@@ -789,7 +789,7 @@ Default value: `1`
 
 ##### <a name="-nginx--gzip_disable"></a>`gzip_disable`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -797,7 +797,7 @@ Default value: `'msie6'`
 
 ##### <a name="-nginx--gzip_min_length"></a>`gzip_min_length`
 
-Data type: `Any`
+Data type: `Integer`
 
 
 
@@ -805,7 +805,7 @@ Default value: `20`
 
 ##### <a name="-nginx--gzip_http_version"></a>`gzip_http_version`
 
-Data type: `Any`
+Data type: `Float`
 
 
 
@@ -821,7 +821,7 @@ Default value: `'off'`
 
 ##### <a name="-nginx--gzip_types"></a>`gzip_types`
 
-Data type: `Any`
+Data type: `Optional[Variant[String[1],Array[String[1]]]]`
 
 
 
@@ -893,7 +893,7 @@ Default value: `'off'`
 
 ##### <a name="-nginx--keepalive_timeout"></a>`keepalive_timeout`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -901,7 +901,7 @@ Default value: `'65s'`
 
 ##### <a name="-nginx--keepalive_requests"></a>`keepalive_requests`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -989,7 +989,7 @@ Default value: `512`
 
 ##### <a name="-nginx--nginx_cfg_prepend"></a>`nginx_cfg_prepend`
 
-Data type: `Any`
+Data type: `Boolean`
 
 
 
@@ -1085,7 +1085,7 @@ Default value: `undef`
 
 ##### <a name="-nginx--proxy_connect_timeout"></a>`proxy_connect_timeout`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -1109,7 +1109,7 @@ Default value: `undef`
 
 ##### <a name="-nginx--proxy_read_timeout"></a>`proxy_read_timeout`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -1117,7 +1117,7 @@ Default value: `'90s'`
 
 ##### <a name="-nginx--proxy_redirect"></a>`proxy_redirect`
 
-Data type: `Any`
+Data type: `Optional[String]`
 
 
 
@@ -1125,7 +1125,7 @@ Default value: `undef`
 
 ##### <a name="-nginx--proxy_send_timeout"></a>`proxy_send_timeout`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -1256,7 +1256,7 @@ Default value: `true`
 
 ##### <a name="-nginx--types_hash_bucket_size"></a>`types_hash_bucket_size`
 
-Data type: `Any`
+Data type: `Variant[Integer,String]`
 
 
 
@@ -1264,7 +1264,7 @@ Default value: `'512'`
 
 ##### <a name="-nginx--types_hash_max_size"></a>`types_hash_max_size`
 
-Data type: `Any`
+Data type: `Variant[Integer,String]`
 
 
 
@@ -1432,7 +1432,7 @@ Default value: `undef`
 
 ##### <a name="-nginx--package_ensure"></a>`package_ensure`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -1440,7 +1440,7 @@ Default value: `installed`
 
 ##### <a name="-nginx--package_name"></a>`package_name`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -1448,7 +1448,7 @@ Default value: `$nginx::params::package_name`
 
 ##### <a name="-nginx--package_source"></a>`package_source`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -1456,7 +1456,7 @@ Default value: `'nginx'`
 
 ##### <a name="-nginx--package_flavor"></a>`package_flavor`
 
-Data type: `Any`
+Data type: `Optional[String]`
 
 
 
@@ -1496,7 +1496,7 @@ Default value: `undef`
 
 ##### <a name="-nginx--passenger_package_ensure"></a>`passenger_package_ensure`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -1528,7 +1528,7 @@ Default value: `true`
 
 ##### <a name="-nginx--service_flags"></a>`service_flags`
 
-Data type: `Any`
+Data type: `Optional[String]`
 
 
 
@@ -1536,7 +1536,7 @@ Default value: `undef`
 
 ##### <a name="-nginx--service_restart"></a>`service_restart`
 
-Data type: `Any`
+Data type: `Optional[String]`
 
 
 
@@ -1544,7 +1544,7 @@ Default value: `undef`
 
 ##### <a name="-nginx--service_name"></a>`service_name`
 
-Data type: `Any`
+Data type: `String`
 
 
 
@@ -1552,7 +1552,7 @@ Default value: `'nginx'`
 
 ##### <a name="-nginx--service_manage"></a>`service_manage`
 
-Data type: `Any`
+Data type: `Boolean`
 
 
 
diff --git a/manifests/init.pp b/manifests/init.pp
index b8e46dc4c..d871720e7 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -88,12 +88,12 @@
   ### START Nginx Configuration ###
   Optional[Enum['on', 'off']] $absolute_redirect             = undef,
   Enum['on', 'off'] $accept_mutex                            = 'on',
-  $accept_mutex_delay                                        = '500ms',
-  $client_body_buffer_size                                   = '128k',
+  String $accept_mutex_delay                                 = '500ms',
+  String $client_body_buffer_size                            = '128k',
   String $client_max_body_size                               = '10m',
-  $client_body_timeout                                       = '60s',
-  $send_timeout                                              = '60s',
-  $lingering_timeout                                         = '5s',
+  String $client_body_timeout                                = '60s',
+  String $send_timeout                                       = '60s',
+  String $lingering_timeout                                  = '5s',
   Optional[Enum['on','off','always']] $lingering_close       = undef,
   Optional[String[1]] $lingering_time                        = undef,
   Optional[Enum['on', 'off']] $etag                          = undef,
@@ -107,13 +107,13 @@
   Optional[String] $fastcgi_cache_path                       = undef,
   Optional[String] $fastcgi_cache_use_stale                  = undef,
   Enum['on', 'off'] $gzip                                    = 'off',
-  $gzip_buffers                                              = undef,
-  $gzip_comp_level                                           = 1,
-  $gzip_disable                                              = 'msie6',
-  $gzip_min_length                                           = 20,
-  $gzip_http_version                                         = 1.1,
+  Optional[String] $gzip_buffers                             = undef,
+  Integer $gzip_comp_level                                   = 1,
+  String $gzip_disable                                       = 'msie6',
+  Integer $gzip_min_length                                   = 20,
+  Float $gzip_http_version                                   = 1.1,
   Nginx::GzipProxied $gzip_proxied                           = 'off',
-  $gzip_types                                                = undef,
+  Optional[Variant[String[1],Array[String[1]]]] $gzip_types  = undef,
   Enum['on', 'off'] $gzip_vary                               = 'off',
   Optional[Enum['on', 'off', 'always']] $gzip_static         = undef,
   Optional[Variant[Hash, Array]] $http_cfg_prepend           = undef,
@@ -122,8 +122,8 @@
   Optional[Variant[Array[String], String]] $http_raw_append  = undef,
   Enum['on', 'off'] $http_tcp_nodelay                        = 'on',
   Enum['on', 'off'] $http_tcp_nopush                         = 'off',
-  $keepalive_timeout                                         = '65s',
-  $keepalive_requests                                        = '100',
+  String $keepalive_timeout                                  = '65s',
+  String $keepalive_requests                                 = '100',
   Hash[String[1], Nginx::LogFormat] $log_format              = {},
   Hash[String[1], Nginx::LogFormat] $stream_log_format       = {},
   Boolean $mail                                              = false,
@@ -134,7 +134,7 @@
   String $multi_accept                                       = 'off',
   Integer $names_hash_bucket_size                            = 64,
   Integer $names_hash_max_size                               = 512,
-  $nginx_cfg_prepend                                         = false,
+  Boolean $nginx_cfg_prepend                                 = false,
   String $proxy_buffers                                      = '32 4k',
   String $proxy_buffer_size                                  = '8k',
   String $proxy_cache_inactive                               = '20m',
@@ -146,12 +146,12 @@
   Optional[String] $proxy_cache_loader_sleep                 = undef,
   Optional[String] $proxy_cache_loader_threshold             = undef,
   Optional[Enum['on', 'off']] $proxy_use_temp_path           = undef,
-  $proxy_connect_timeout                                     = '90s',
+  String $proxy_connect_timeout                              = '90s',
   Integer $proxy_headers_hash_bucket_size                    = 64,
   Optional[String] $proxy_http_version                       = undef,
-  $proxy_read_timeout                                        = '90s',
-  $proxy_redirect                                            = undef,
-  $proxy_send_timeout                                        = '90s',
+  String $proxy_read_timeout                                 = '90s',
+  Optional[String] $proxy_redirect                           = undef,
+  String $proxy_send_timeout                                 = '90s',
   Array $proxy_set_header                                    = [
     'Host $host',
     'X-Real-IP $remote_addr',
@@ -173,8 +173,8 @@
   Enum['on', 'off'] $ssl_stapling_verify                     = 'off',
   Stdlib::Absolutepath $snippets_dir                         = $nginx::params::snippets_dir,
   Boolean $manage_snippets_dir                               = true,
-  $types_hash_bucket_size                                    = '512',
-  $types_hash_max_size                                       = '1024',
+  Variant[Integer,String] $types_hash_bucket_size            = '512',
+  Variant[Integer,String] $types_hash_max_size               = '1024',
   Integer $worker_connections                                = 1024,
   Enum['on', 'off'] $ssl_prefer_server_ciphers               = 'on',
   Variant[Integer, Enum['auto']] $worker_processes           = 'auto',
@@ -198,15 +198,15 @@
   Optional[Enum['on', 'off']] $reset_timedout_connection     = undef,
 
   ### START Package Configuration ###
-  $package_ensure                                            = installed,
-  $package_name                                              = $nginx::params::package_name,
-  $package_source                                            = 'nginx',
-  $package_flavor                                            = undef,
+  String $package_ensure                                     = installed,
+  String $package_name                                       = $nginx::params::package_name,
+  String $package_source                                     = 'nginx',
+  Optional[String] $package_flavor                           = undef,
   Boolean $manage_repo                                       = $nginx::params::manage_repo,
   Hash[String[1], String[1]] $mime_types                     = $nginx::params::mime_types,
   Boolean $mime_types_preserve_defaults                      = false,
   Optional[String] $repo_release                             = undef,
-  $passenger_package_ensure                                  = installed,
+  String $passenger_package_ensure                           = installed,
   String[1] $passenger_package_name                          = $nginx::params::passenger_package_name,
   Optional[Stdlib::HTTPUrl] $repo_source                     = undef,
   ### END Package Configuration ###
@@ -214,10 +214,10 @@
   ### START Service Configuation ###
   Stdlib::Ensure::Service $service_ensure                    = 'running',
   Boolean $service_enable                                    = true,
-  $service_flags                                             = undef,
-  $service_restart                                           = undef,
-  $service_name                                              = 'nginx',
-  $service_manage                                            = true,
+  Optional[String] $service_flags                            = undef,
+  Optional[String] $service_restart                          = undef,
+  String $service_name                                       = 'nginx',
+  Boolean $service_manage                                    = true,
   Boolean $service_config_check                              = false,
   String $service_config_check_command                       = 'nginx -t',
   ### END Service Configuration ###