diff --git a/isilon_sdk/isilon_sdk/v9_0_0/api_client.py b/isilon_sdk/isilon_sdk/v9_0_0/api_client.py
index 281a5f847..4e224b43f 100644
--- a/isilon_sdk/isilon_sdk/v9_0_0/api_client.py
+++ b/isilon_sdk/isilon_sdk/v9_0_0/api_client.py
@@ -67,7 +67,7 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
             configuration = Configuration()
         self.configuration = configuration
 
-        self.pool = ThreadPool()
+        self._pool = None  # Use the pool property to lazily initialize the ThreadPool.
         self.rest_client = rest.RESTClientObject(configuration)
         self.default_headers = {}
         if header_name is not None:
@@ -86,8 +86,15 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
         self.x_csrf_token = None
 
     def __del__(self):
-        self.pool.close()
-        self.pool.join()
+        if self._pool is not None:
+            self._pool.close()
+            self._pool.join()
+
+    @property
+    def pool(self):
+        if self._pool is None:
+            self._pool = ThreadPool()
+        return self._pool
 
     @property
     def user_agent(self):
diff --git a/isilon_sdk/isilon_sdk/v9_1_0/api_client.py b/isilon_sdk/isilon_sdk/v9_1_0/api_client.py
index 308766816..44116b15f 100644
--- a/isilon_sdk/isilon_sdk/v9_1_0/api_client.py
+++ b/isilon_sdk/isilon_sdk/v9_1_0/api_client.py
@@ -67,7 +67,7 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
             configuration = Configuration()
         self.configuration = configuration
 
-        self.pool = ThreadPool()
+        self._pool = None  # Use the pool property to lazily initialize the ThreadPool.
         self.rest_client = rest.RESTClientObject(configuration)
         self.default_headers = {}
         if header_name is not None:
@@ -86,8 +86,15 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
         self.x_csrf_token = None
 
     def __del__(self):
-        self.pool.close()
-        self.pool.join()
+        if self._pool is not None:
+            self._pool.close()
+            self._pool.join()
+
+    @property
+    def pool(self):
+        if self._pool is None:
+            self._pool = ThreadPool()
+        return self._pool
 
     @property
     def user_agent(self):
diff --git a/isilon_sdk/isilon_sdk/v9_2_0/api_client.py b/isilon_sdk/isilon_sdk/v9_2_0/api_client.py
index 5773e5c7f..fd24831e1 100644
--- a/isilon_sdk/isilon_sdk/v9_2_0/api_client.py
+++ b/isilon_sdk/isilon_sdk/v9_2_0/api_client.py
@@ -67,7 +67,7 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
             configuration = Configuration()
         self.configuration = configuration
 
-        self.pool = ThreadPool()
+        self._pool = None  # Use the pool property to lazily initialize the ThreadPool.
         self.rest_client = rest.RESTClientObject(configuration)
         self.default_headers = {}
         if header_name is not None:
@@ -86,8 +86,15 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
         self.x_csrf_token = None
 
     def __del__(self):
-        self.pool.close()
-        self.pool.join()
+        if self._pool is not None:
+            self._pool.close()
+            self._pool.join()
+
+    @property
+    def pool(self):
+        if self._pool is None:
+            self._pool = ThreadPool()
+        return self._pool
 
     @property
     def user_agent(self):
diff --git a/isilon_sdk/isilon_sdk/v9_2_1/api_client.py b/isilon_sdk/isilon_sdk/v9_2_1/api_client.py
index 01d582d53..57f2fd601 100644
--- a/isilon_sdk/isilon_sdk/v9_2_1/api_client.py
+++ b/isilon_sdk/isilon_sdk/v9_2_1/api_client.py
@@ -67,7 +67,7 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
             configuration = Configuration()
         self.configuration = configuration
 
-        self.pool = ThreadPool()
+        self._pool = None  # Use the pool property to lazily initialize the ThreadPool.
         self.rest_client = rest.RESTClientObject(configuration)
         self.default_headers = {}
         if header_name is not None:
@@ -86,8 +86,15 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
         self.x_csrf_token = None
 
     def __del__(self):
-        self.pool.close()
-        self.pool.join()
+        if self._pool is not None:
+            self._pool.close()
+            self._pool.join()
+
+    @property
+    def pool(self):
+        if self._pool is None:
+            self._pool = ThreadPool()
+        return self._pool
 
     @property
     def user_agent(self):
diff --git a/isilon_sdk/isilon_sdk/v9_3_0/api_client.py b/isilon_sdk/isilon_sdk/v9_3_0/api_client.py
index 0a53e86eb..9ac9a74b4 100644
--- a/isilon_sdk/isilon_sdk/v9_3_0/api_client.py
+++ b/isilon_sdk/isilon_sdk/v9_3_0/api_client.py
@@ -67,7 +67,7 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
             configuration = Configuration()
         self.configuration = configuration
 
-        self.pool = ThreadPool()
+        self._pool = None  # Use the pool property to lazily initialize the ThreadPool.
         self.rest_client = rest.RESTClientObject(configuration)
         self.default_headers = {}
         if header_name is not None:
@@ -86,8 +86,15 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
         self.x_csrf_token = None
 
     def __del__(self):
-        self.pool.close()
-        self.pool.join()
+        if self._pool is not None:
+            self._pool.close()
+            self._pool.join()
+
+    @property
+    def pool(self):
+        if self._pool is None:
+            self._pool = ThreadPool()
+        return self._pool
 
     @property
     def user_agent(self):
diff --git a/isilon_sdk/isilon_sdk/v9_4_0/api_client.py b/isilon_sdk/isilon_sdk/v9_4_0/api_client.py
index efc94d9d9..a57765ce3 100644
--- a/isilon_sdk/isilon_sdk/v9_4_0/api_client.py
+++ b/isilon_sdk/isilon_sdk/v9_4_0/api_client.py
@@ -67,7 +67,7 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
             configuration = Configuration()
         self.configuration = configuration
 
-        self.pool = ThreadPool()
+        self._pool = None  # Use the pool property to lazily initialize the ThreadPool.
         self.rest_client = rest.RESTClientObject(configuration)
         self.default_headers = {}
         if header_name is not None:
@@ -86,8 +86,15 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
         self.x_csrf_token = None
 
     def __del__(self):
-        self.pool.close()
-        self.pool.join()
+        if self._pool is not None:
+            self._pool.close()
+            self._pool.join()
+
+    @property
+    def pool(self):
+        if self._pool is None:
+            self._pool = ThreadPool()
+        return self._pool
 
     @property
     def user_agent(self):
diff --git a/isilon_sdk/isilon_sdk/v9_5_0/api_client.py b/isilon_sdk/isilon_sdk/v9_5_0/api_client.py
index 35b9a09c8..81d72f013 100644
--- a/isilon_sdk/isilon_sdk/v9_5_0/api_client.py
+++ b/isilon_sdk/isilon_sdk/v9_5_0/api_client.py
@@ -67,7 +67,7 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
             configuration = Configuration()
         self.configuration = configuration
 
-        self.pool = ThreadPool()
+        self._pool = None  # Use the pool property to lazily initialize the ThreadPool.
         self.rest_client = rest.RESTClientObject(configuration)
         self.default_headers = {}
         if header_name is not None:
@@ -86,8 +86,15 @@ def __init__(self, configuration=None, header_name=None, header_value=None,
         self.x_csrf_token = None
 
     def __del__(self):
-        self.pool.close()
-        self.pool.join()
+        if self._pool is not None:
+            self._pool.close()
+            self._pool.join()
+
+    @property
+    def pool(self):
+        if self._pool is None:
+            self._pool = ThreadPool()
+        return self._pool
 
     @property
     def user_agent(self):