fix generate external transforms

Author: derrickaw

sdks/standard_external_transforms.yaml

@@ -19,7 +19,7 @@
 # configuration in /sdks/standard_expansion_services.yaml.
 # Refer to gen_xlang_wrappers.py for more info.
 #
-# Last updated on: 2026-05-06
+# Last updated on: 2026-06-02
 
 - default_service: sdks:java:io:expansion-service:shadowJar
   description: 'Outputs a PCollection of Beam Rows, each containing a single INT64
@@ -50,6 +50,40 @@
     type: int64
   identifier: beam:schematransform:org.apache.beam:generate_sequence:v1
   name: GenerateSequence
+- default_service: sdks:java:io:expansion-service:shadowJar
+  description: ''
+  destinations:
+    python: apache_beam/io
+  fields:
+  - description: The MongoDB collection to read from.
+    name: collection
+    nullable: false
+    type: str
+  - description: The MongoDB database to read from.
+    name: database
+    nullable: false
+    type: str
+  - description: This option specifies whether and where to output rows that failed
+      to be read.
+    name: error_handling
+    nullable: true
+    type: Row(output=<class 'str'>)
+  - description: An optional BSON filter to apply to the read. This should be a valid
+      JSON string.
+    name: filter
+    nullable: true
+    type: str
+  - description: The schema in which the data is encoded, defined with JSON-schema
+      syntax (https://json-schema.org/).
+    name: schema
+    nullable: false
+    type: str
+  - description: The connection URI for the MongoDB server.
+    name: uri
+    nullable: false
+    type: str
+  identifier: beam:schematransform:org.apache.beam:mongodb_read:v1
+  name: MongodbRead
 - default_service: sdks:java:io:expansion-service:shadowJar
   description: ''
   destinations: