@type t() :: %Milvex.Milvus.Proto.Milvus.UpsertRequest{
  __unknown_fields__: [Protobuf.unknown_field()],
  base: Milvex.Milvus.Proto.Common.MsgBase.t() | nil,
  collection_name: String.t(),
  db_name: String.t(),
  fields_data: [Milvex.Milvus.Proto.Schema.FieldData.t()],
  hash_keys: [non_neg_integer()],
  namespace: String.t() | nil,
  num_rows: non_neg_integer(),
  partial_update: boolean(),
  partition_name: String.t(),
  schema_timestamp: non_neg_integer()
}