[yaml] remove PubSubLite from API docs

sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/pubsublite/PubsubLiteReadSchemaTransformProvider.java

@@ -87,6 +87,13 @@ protected Class<PubsubLiteReadSchemaTransformConfiguration> configurationClass()
     return PubsubLiteReadSchemaTransformConfiguration.class;
   }
 
+  @Override
+  public String description() {
+    return "Performs a read from Google Pub/Sub Lite.\n"
+        + "\n"
+        + "**Note**: This provider is deprecated. See Pub/Sub Lite <a href=\"https://cloud.google.com/pubsub/lite/docs\">documentation</a> for more information.";
+  }
+
   public static class ErrorFn extends DoFn<SequencedMessage, Row> {
     private final SerializableFunction<byte[], Row> valueMapper;
     private final Counter errorCounter;

sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/pubsublite/PubsubLiteWriteSchemaTransformProvider.java

@@ -82,6 +82,13 @@ protected Class<PubsubLiteWriteSchemaTransformConfiguration> configurationClass(
     return PubsubLiteWriteSchemaTransformConfiguration.class;
   }
 
+  @Override
+  public String description() {
+    return "Performs a write to Google Pub/Sub Lite.\n"
+        + "\n"
+        + "**Note**: This provider is deprecated. See Pub/Sub Lite <a href=\"https://cloud.google.com/pubsub/lite/docs\">documentation</a> for more information.";
+  }
+
   public static class ErrorCounterFn extends DoFn<Row, PubSubMessage> {
     private final SerializableFunction<Row, byte[]> toBytesFn;
     private final Counter errorCounter;

sdks/python/apache_beam/yaml/generate_yaml_docs.py

@@ -189,11 +189,8 @@ def io_grouping_key(transform_name):
     return 0, transform_name
 
 
-SKIP = [
-    'Combine',
-    'Filter',
-    'MapToFields',
-]
+# Exclude providers
+SKIP = {}
 
 
 def transform_docs(transform_base, transforms, providers, extra_docs=''):
@@ -236,7 +233,8 @@ def main():
   options = parser.parse_args()
   include = re.compile(options.include).match
   exclude = (
-      re.compile(options.exclude).match if options.exclude else lambda _: False)
+      re.compile(options.exclude).match
+      if options.exclude else lambda x: x in SKIP)
 
   with subprocess_server.SubprocessServer.cache_subprocesses():
     json_config_schemas = []