Type mapping

In tier 2 (and generated code), protobuf types convert to and from Godot Variant types as follows.

Notes

• 64-bit unsigned integers: values above 2^63 - 1 do not fit in Godot’s signed 64-bit int and will wrap. Use string fields for very large numbers if exact representation matters.
• Nested messages are GrpcMessage instances. When setting a message field you may pass either a GrpcMessage or a plain Dictionary.
• GrpcMessage.to_dict() converts a whole message (recursively) to a Dictionary; get_field / set_field work field-by-field.
• Unset fields read back as their protobuf defaults (0, "", empty array, etc.).