diff --git a/build/helper/metadata_filters.py b/build/helper/metadata_filters.py
index 745184b0b..93ff676c4 100644
--- a/build/helper/metadata_filters.py
+++ b/build/helper/metadata_filters.py
@@ -348,15 +348,21 @@ def filter_parameters(parameters, parameter_usage_options):
     parameters_to_use = []
 
     # Filter based on options
-    size_parameter = None
+    ivi_dance_size_parameter = None
+    len_size_parameter_names = set()
     size_twist_parameter = None
     # If we are being called looking for the ivi-dance, len or code param, we do not care about the size param so we do
     #  not call back into ourselves, to avoid infinite recursion
     if parameter_usage_options not in [ParameterUsageOptions.IVI_DANCE_PARAMETER, ParameterUsageOptions.LEN_PARAMETER]:
-        # Find the size parameter - we are assuming there can only be one type, either from ivi-dance or len
-        size_parameter = find_size_parameter(filter_ivi_dance_parameters(parameters), parameters)
-        if size_parameter is None:
-            size_parameter = find_size_parameter(filter_len_parameters(parameters), parameters)
+        # Determine any size parameters that should be skipped based on the presence of ivi-dance or len-sized buffers.
+        # For ivi-dance, there is a single shared size parameter; for len, there may be multiple independent size parameters.
+        ivi_dance_size_parameter = find_size_parameter(filter_ivi_dance_parameters(parameters), parameters)
+        # Collect all size parameter names referenced by len-sized parameters
+        len_params = filter_len_parameters(parameters)
+        for param in len_params:
+            len_size_param = find_size_parameter(param, parameters)
+            if len_size_param is not None:
+                len_size_parameter_names.add(len_size_param['name'])
         size_twist_parameter = find_size_parameter(filter_ivi_dance_twist_parameters(parameters), parameters, key='value_twist')
     for x in parameters:
         skip = False
@@ -364,7 +370,9 @@ def filter_parameters(parameters, parameter_usage_options):
             skip = True
         if x['direction'] == 'in' and options_to_use['skip_input_parameters']:
             skip = True
-        if x == size_parameter and options_to_use['skip_size_parameter']:
+        if ivi_dance_size_parameter is not None and x == ivi_dance_size_parameter and options_to_use['skip_size_parameter']:
+            skip = True
+        if len_size_parameter_names and x['name'] in len_size_parameter_names and options_to_use['skip_size_parameter']:
             skip = True
         if size_twist_parameter is not None and x == size_twist_parameter and options_to_use['skip_size_parameter']:
             skip = True
@@ -443,18 +451,15 @@ def filter_ivi_dance_twist_parameters(parameters):
 def filter_len_parameters(parameters):
     '''Returns the len parameters of a session method if there are any. These are the parameters whose size is determined at runtime using the value of a different parameter.
 
-    asserts all parameters that use len reference the same parameter
+    Note: Multiple len parameters may reference different size parameters.
     Args:
         parameters: parameters to be checked
 
     Return:
-        None if no len parameter found
-        Parameters dict if one is found
+        Empty list if no len parameter found
+        List of parameters if any are found
     '''
     params = filter_parameters(parameters, ParameterUsageOptions.LEN_PARAMETER)
-    if len(params) > 0:
-        size_param = params[0]['size']['value']
-        assert all(x['size']['value'] == size_param for x in params)
     return params
 
 
diff --git a/build/templates/_library_interpreter.py/default_method.py.mako b/build/templates/_library_interpreter.py/default_method.py.mako
index 11718e547..0fbfc31a6 100644
--- a/build/templates/_library_interpreter.py/default_method.py.mako
+++ b/build/templates/_library_interpreter.py/default_method.py.mako
@@ -11,8 +11,8 @@
     ivi_dance_parameters = helper.filter_ivi_dance_parameters(parameters)
     ivi_dance_size_parameter = helper.find_size_parameter(ivi_dance_parameters, parameters)
     len_parameters = helper.filter_len_parameters(parameters)
-    len_size_parameter = helper.find_size_parameter(len_parameters, parameters)
-    assert ivi_dance_size_parameter is None or len_size_parameter is None
+    len_size_parameters = helper.find_size_parameter(len_parameters, parameters)
+    assert ivi_dance_size_parameter is None or len_size_parameters is None
 
     full_func_name = f['interpreter_name'] + method_template['method_python_name_suffix']
     c_func_name = config['c_function_prefix'] + f['name']
diff --git a/build/templates/_library_interpreter.py/initialization_method.py.mako b/build/templates/_library_interpreter.py/initialization_method.py.mako
index c32c18a08..00a00bd92 100644
--- a/build/templates/_library_interpreter.py/initialization_method.py.mako
+++ b/build/templates/_library_interpreter.py/initialization_method.py.mako
@@ -12,8 +12,8 @@
     ivi_dance_parameters = helper.filter_ivi_dance_parameters(parameters)
     ivi_dance_size_parameter = helper.find_size_parameter(ivi_dance_parameters, parameters)
     len_parameters = helper.filter_len_parameters(parameters)
-    len_size_parameter = helper.find_size_parameter(len_parameters, parameters)
-    assert ivi_dance_size_parameter is None or len_size_parameter is None
+    len_size_parameters = helper.find_size_parameter(len_parameters, parameters)
+    assert ivi_dance_size_parameter is None or len_size_parameters is None
 
     full_func_name = f['interpreter_name'] + method_template['method_python_name_suffix']
     c_func_name = config['c_function_prefix'] + f['name']
diff --git a/build/templates/_library_singleton.py.mako b/build/templates/_library_singleton.py.mako
index 0039655eb..5be38beb3 100644
--- a/build/templates/_library_singleton.py.mako
+++ b/build/templates/_library_singleton.py.mako
@@ -44,7 +44,7 @@ def get():
     Returns the library.Library singleton for ${config['module_name']}.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/generated/nidcpower/nidcpower/_library_singleton.py b/generated/nidcpower/nidcpower/_library_singleton.py
index 65363a659..161329a32 100644
--- a/generated/nidcpower/nidcpower/_library_singleton.py
+++ b/generated/nidcpower/nidcpower/_library_singleton.py
@@ -40,7 +40,7 @@ def get():
     Returns the library.Library singleton for nidcpower.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/generated/nidigital/nidigital/_library_singleton.py b/generated/nidigital/nidigital/_library_singleton.py
index 610e58d23..cd12a57d5 100644
--- a/generated/nidigital/nidigital/_library_singleton.py
+++ b/generated/nidigital/nidigital/_library_singleton.py
@@ -40,7 +40,7 @@ def get():
     Returns the library.Library singleton for nidigital.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/generated/nidmm/nidmm/_library_singleton.py b/generated/nidmm/nidmm/_library_singleton.py
index 8cf08d3e1..c4fb78852 100644
--- a/generated/nidmm/nidmm/_library_singleton.py
+++ b/generated/nidmm/nidmm/_library_singleton.py
@@ -40,7 +40,7 @@ def get():
     Returns the library.Library singleton for nidmm.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/generated/nifake/nifake/_grpc_stub_interpreter.py b/generated/nifake/nifake/_grpc_stub_interpreter.py
index b9e7617da..0eeae4d79 100644
--- a/generated/nifake/nifake/_grpc_stub_interpreter.py
+++ b/generated/nifake/nifake/_grpc_stub_interpreter.py
@@ -356,6 +356,12 @@ def multiple_array_types(self, output_array_size, input_array_of_floats, input_a
         )
         return response.output_array, response.output_array_of_fixed_length
 
+    def multiple_arrays_different_size(self, values_array, data_array):  # noqa: N802
+        self._invoke(
+            self._client.MultipleArraysDifferentSize,
+            grpc_types.MultipleArraysDifferentSizeRequest(vi=self._vi, values_array=values_array, data_array=data_array),
+        )
+
     def multiple_arrays_same_size(self, values1, values2, values3, values4):  # noqa: N802
         self._invoke(
             self._client.MultipleArraysSameSize,
diff --git a/generated/nifake/nifake/_library.py b/generated/nifake/nifake/_library.py
index 95a91e2f7..dd8459e2d 100644
--- a/generated/nifake/nifake/_library.py
+++ b/generated/nifake/nifake/_library.py
@@ -72,6 +72,7 @@ def __init__(self, ctypes_library):
         self.niFake_MethodWithGrpcOnlyParam_cfunc = None
         self.niFake_MethodWithProtoOnlyParameter_cfunc = None
         self.niFake_MultipleArrayTypes_cfunc = None
+        self.niFake_MultipleArraysDifferentSize_cfunc = None
         self.niFake_MultipleArraysSameSize_cfunc = None
         self.niFake_OneInputFunction_cfunc = None
         self.niFake_ParametersAreMultipleTypes_cfunc = None
@@ -477,6 +478,14 @@ def niFake_MultipleArrayTypes(self, vi, output_array_size, output_array, output_
                 self.niFake_MultipleArrayTypes_cfunc.restype = ViStatus  # noqa: F405
         return self.niFake_MultipleArrayTypes_cfunc(vi, output_array_size, output_array, output_array_of_fixed_length, input_array_sizes, input_array_of_floats, input_array_of_integers)
 
+    def niFake_MultipleArraysDifferentSize(self, vi, values_array, values_array_size, data_array, data_array_size):  # noqa: N802
+        with self._func_lock:
+            if self.niFake_MultipleArraysDifferentSize_cfunc is None:
+                self.niFake_MultipleArraysDifferentSize_cfunc = self._get_library_function('niFake_MultipleArraysDifferentSize')
+                self.niFake_MultipleArraysDifferentSize_cfunc.argtypes = [ViSession, ctypes.POINTER(ViReal64), ViInt32, ctypes.POINTER(ViInt32), ViInt32]  # noqa: F405
+                self.niFake_MultipleArraysDifferentSize_cfunc.restype = ViStatus  # noqa: F405
+        return self.niFake_MultipleArraysDifferentSize_cfunc(vi, values_array, values_array_size, data_array, data_array_size)
+
     def niFake_MultipleArraysSameSize(self, vi, values1, values2, values3, values4, size):  # noqa: N802
         with self._func_lock:
             if self.niFake_MultipleArraysSameSize_cfunc is None:
diff --git a/generated/nifake/nifake/_library_interpreter.py b/generated/nifake/nifake/_library_interpreter.py
index da7e3881a..5c706f3f2 100644
--- a/generated/nifake/nifake/_library_interpreter.py
+++ b/generated/nifake/nifake/_library_interpreter.py
@@ -542,6 +542,16 @@ def multiple_array_types(self, output_array_size, input_array_of_floats, input_a
         errors.handle_error(self, error_code, ignore_warnings=False, is_error_handling=False)
         return [float(output_array_ctype[i]) for i in range(output_array_size_ctype.value)], [float(output_array_of_fixed_length_ctype[i]) for i in range(3)]
 
+    def multiple_arrays_different_size(self, values_array, data_array):  # noqa: N802
+        vi_ctype = _visatype.ViSession(self._vi)  # case S110
+        values_array_ctype = _get_ctypes_pointer_for_buffer(value=values_array, library_type=_visatype.ViReal64)  # case B550
+        values_array_size_ctype = _visatype.ViInt32(0 if values_array is None else len(values_array))  # case S160
+        data_array_ctype = _get_ctypes_pointer_for_buffer(value=data_array, library_type=_visatype.ViInt32)  # case B550
+        data_array_size_ctype = _visatype.ViInt32(0 if data_array is None else len(data_array))  # case S160
+        error_code = self._library.niFake_MultipleArraysDifferentSize(vi_ctype, values_array_ctype, values_array_size_ctype, data_array_ctype, data_array_size_ctype)
+        errors.handle_error(self, error_code, ignore_warnings=False, is_error_handling=False)
+        return
+
     def multiple_arrays_same_size(self, values1, values2, values3, values4):  # noqa: N802
         vi_ctype = _visatype.ViSession(self._vi)  # case S110
         values1_ctype = _get_ctypes_pointer_for_buffer(value=values1, library_type=_visatype.ViReal64)  # case B550
diff --git a/generated/nifake/nifake/_library_singleton.py b/generated/nifake/nifake/_library_singleton.py
index eff0757af..a779f2126 100644
--- a/generated/nifake/nifake/_library_singleton.py
+++ b/generated/nifake/nifake/_library_singleton.py
@@ -40,7 +40,7 @@ def get():
     Returns the library.Library singleton for nifake.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/generated/nifake/nifake/session.py b/generated/nifake/nifake/session.py
index d082ac3c9..0d4aeec61 100644
--- a/generated/nifake/nifake/session.py
+++ b/generated/nifake/nifake/session.py
@@ -1404,6 +1404,20 @@ def multiple_array_types(self, output_array_size, input_array_of_floats, input_a
         output_array, output_array_of_fixed_length = self._interpreter.multiple_array_types(output_array_size, input_array_of_floats, input_array_of_integers)
         return output_array, output_array_of_fixed_length
 
+    @ivi_synchronized
+    def multiple_arrays_different_size(self, values_array, data_array):
+        r'''multiple_arrays_different_size
+
+        Test method with multiple arrays that have different size parameters. This tests the length handling mechanism where different array parameters can reference different size parameters.
+
+        Args:
+            values_array (list of float): Array of double values with its own size parameter.
+
+            data_array (list of int): Array of integer values with a different size parameter.
+
+        '''
+        self._interpreter.multiple_arrays_different_size(values_array, data_array)
+
     @ivi_synchronized
     def multiple_arrays_same_size(self, values1, values2, values3, values4):
         r'''multiple_arrays_same_size
diff --git a/generated/nifake/nifake/unit_tests/_mock_helper.py b/generated/nifake/nifake/unit_tests/_mock_helper.py
index 8c76539e0..b4e808cec 100644
--- a/generated/nifake/nifake/unit_tests/_mock_helper.py
+++ b/generated/nifake/nifake/unit_tests/_mock_helper.py
@@ -152,6 +152,8 @@ def __init__(self):
         self._defaults['MultipleArrayTypes']['return'] = 0
         self._defaults['MultipleArrayTypes']['outputArray'] = None
         self._defaults['MultipleArrayTypes']['outputArrayOfFixedLength'] = None
+        self._defaults['MultipleArraysDifferentSize'] = {}
+        self._defaults['MultipleArraysDifferentSize']['return'] = 0
         self._defaults['MultipleArraysSameSize'] = {}
         self._defaults['MultipleArraysSameSize']['return'] = 0
         self._defaults['OneInputFunction'] = {}
@@ -763,6 +765,11 @@ def niFake_MultipleArrayTypes(self, vi, output_array_size, output_array, output_
             output_array_of_fixed_length_ref[i] = test_value[i]
         return self._defaults['MultipleArrayTypes']['return']
 
+    def niFake_MultipleArraysDifferentSize(self, vi, values_array, values_array_size, data_array, data_array_size):  # noqa: N802
+        if self._defaults['MultipleArraysDifferentSize']['return'] != 0:
+            return self._defaults['MultipleArraysDifferentSize']['return']
+        return self._defaults['MultipleArraysDifferentSize']['return']
+
     def niFake_MultipleArraysSameSize(self, vi, values1, values2, values3, values4, size):  # noqa: N802
         if self._defaults['MultipleArraysSameSize']['return'] != 0:
             return self._defaults['MultipleArraysSameSize']['return']
@@ -1122,6 +1129,8 @@ def set_side_effects_and_return_values(self, mock_library):
         mock_library.niFake_MethodWithProtoOnlyParameter.return_value = 0
         mock_library.niFake_MultipleArrayTypes.side_effect = MockFunctionCallError("niFake_MultipleArrayTypes")
         mock_library.niFake_MultipleArrayTypes.return_value = 0
+        mock_library.niFake_MultipleArraysDifferentSize.side_effect = MockFunctionCallError("niFake_MultipleArraysDifferentSize")
+        mock_library.niFake_MultipleArraysDifferentSize.return_value = 0
         mock_library.niFake_MultipleArraysSameSize.side_effect = MockFunctionCallError("niFake_MultipleArraysSameSize")
         mock_library.niFake_MultipleArraysSameSize.return_value = 0
         mock_library.niFake_OneInputFunction.side_effect = MockFunctionCallError("niFake_OneInputFunction")
diff --git a/generated/nifake/nifake/unit_tests/test_library_interpreter.py b/generated/nifake/nifake/unit_tests/test_library_interpreter.py
index 45cfc7dc2..835119459 100644
--- a/generated/nifake/nifake/unit_tests/test_library_interpreter.py
+++ b/generated/nifake/nifake/unit_tests/test_library_interpreter.py
@@ -325,6 +325,20 @@ def test_multiple_arrays_same_size_none_input(self):
             _matchers.ViInt32Matcher(len(input_array_of_floats1)),
         )
 
+    def test_multiple_arrays_different_size(self):
+        self.patched_library.niFake_MultipleArraysDifferentSize.side_effect = self.side_effects_helper.niFake_MultipleArraysDifferentSize
+        values_array = [1.1, 2.2, 3.3]
+        data_array = [10, 20, 30, 40, 50]
+        interpreter = self.get_initialized_library_interpreter()
+        interpreter.multiple_arrays_different_size(values_array, data_array)
+        self.patched_library.niFake_MultipleArraysDifferentSize.assert_called_once_with(
+            _matchers.ViSessionMatcher(SESSION_NUM_FOR_TEST),
+            _matchers.ViReal64BufferMatcher(values_array),
+            _matchers.ViInt32Matcher(len(values_array)),
+            _matchers.ViInt32BufferMatcher(data_array),
+            _matchers.ViInt32Matcher(len(data_array)),
+        )
+
     def test_parameters_are_multiple_types(self):
         self.patched_library.niFake_ParametersAreMultipleTypes.side_effect = self.side_effects_helper.niFake_ParametersAreMultipleTypes
         boolean_val = True
diff --git a/generated/nifgen/nifgen/_library_singleton.py b/generated/nifgen/nifgen/_library_singleton.py
index b78c1b06a..d9669b856 100644
--- a/generated/nifgen/nifgen/_library_singleton.py
+++ b/generated/nifgen/nifgen/_library_singleton.py
@@ -40,7 +40,7 @@ def get():
     Returns the library.Library singleton for nifgen.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/generated/nimodinst/nimodinst/_library_singleton.py b/generated/nimodinst/nimodinst/_library_singleton.py
index def458ad6..6494402cd 100644
--- a/generated/nimodinst/nimodinst/_library_singleton.py
+++ b/generated/nimodinst/nimodinst/_library_singleton.py
@@ -40,7 +40,7 @@ def get():
     Returns the library.Library singleton for nimodinst.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/generated/nirfsg/nirfsg/_library_singleton.py b/generated/nirfsg/nirfsg/_library_singleton.py
index 1259095de..fc11446f0 100644
--- a/generated/nirfsg/nirfsg/_library_singleton.py
+++ b/generated/nirfsg/nirfsg/_library_singleton.py
@@ -40,7 +40,7 @@ def get():
     Returns the library.Library singleton for nirfsg.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/generated/niscope/niscope/_library_singleton.py b/generated/niscope/niscope/_library_singleton.py
index 752e42612..5ef1be482 100644
--- a/generated/niscope/niscope/_library_singleton.py
+++ b/generated/niscope/niscope/_library_singleton.py
@@ -40,7 +40,7 @@ def get():
     Returns the library.Library singleton for niscope.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/generated/nise/nise/_library_singleton.py b/generated/nise/nise/_library_singleton.py
index 0661189f4..a32e6349c 100644
--- a/generated/nise/nise/_library_singleton.py
+++ b/generated/nise/nise/_library_singleton.py
@@ -40,7 +40,7 @@ def get():
     Returns the library.Library singleton for nise.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/generated/niswitch/niswitch/_library_singleton.py b/generated/niswitch/niswitch/_library_singleton.py
index d53ac4363..84b4f0ef9 100644
--- a/generated/niswitch/niswitch/_library_singleton.py
+++ b/generated/niswitch/niswitch/_library_singleton.py
@@ -40,7 +40,7 @@ def get():
     Returns the library.Library singleton for niswitch.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/generated/nitclk/nitclk/_library_singleton.py b/generated/nitclk/nitclk/_library_singleton.py
index 2b2ca7e78..4bcc841a1 100644
--- a/generated/nitclk/nitclk/_library_singleton.py
+++ b/generated/nitclk/nitclk/_library_singleton.py
@@ -40,7 +40,7 @@ def get():
     Returns the library.Library singleton for nitclk.
     '''
     global _instance
-    global _instance_lock
+    global _instance_lock  # noqa: F824
 
     with _instance_lock:
         if _instance is None:
diff --git a/src/nifake/metadata/functions.py b/src/nifake/metadata/functions.py
index b50c9265a..58b58089c 100644
--- a/src/nifake/metadata/functions.py
+++ b/src/nifake/metadata/functions.py
@@ -3120,6 +3120,71 @@
         'python_name': 'self_test',
         'returns': 'ViStatus'
     },
+    'MultipleArraysDifferentSize': {
+        'codegen_method': 'public',
+        'documentation': {
+            'description': 'Test function with multiple arrays that have different size parameters. This tests the length handling mechanism where different array parameters can reference different size parameters.'
+        },
+        'included_in_proto': True,
+        'parameters': [
+            {
+                'direction': 'in',
+                'documentation': {
+                    'description': 'Identifies a particular instrument session.'
+                },
+                'name': 'vi',
+                'type': 'ViSession'
+            },
+            {
+                'direction': 'in',
+                'documentation': {
+                    'description': 'Array of double values with its own size parameter.'
+                },
+                'name': 'valuesArray',
+                'numpy': True,
+                'size': {
+                    'mechanism': 'len',
+                    'value': 'valuesArraySize'
+                },
+                'type': 'ViReal64[]',
+                'use_in_python_api': True
+            },
+            {
+                'direction': 'in',
+                'documentation': {
+                    'description': 'Specifies the size of the values array.'
+                },
+                'name': 'valuesArraySize',
+                'type': 'ViInt32',
+                'use_array': False
+            },
+            {
+                'direction': 'in',
+                'documentation': {
+                    'description': 'Array of integer values with a different size parameter.'
+                },
+                'name': 'dataArray',
+                'numpy': True,
+                'size': {
+                    'mechanism': 'len',
+                    'value': 'dataArraySize'
+                },
+                'type': 'ViInt32[]',
+                'use_in_python_api': True
+            },
+            {
+                'direction': 'in',
+                'documentation': {
+                    'description': 'Specifies the size of the data array.'
+                },
+                'name': 'dataArraySize',
+                'type': 'ViInt32',
+                'use_array': False,
+                'use_in_python_api': False
+            }
+        ],
+        'returns': 'ViStatus'
+    },
     'self_test': {
         'codegen_method': 'private',
         'documentation': {
diff --git a/src/nifake/unit_tests/test_library_interpreter.py b/src/nifake/unit_tests/test_library_interpreter.py
index 45cfc7dc2..835119459 100644
--- a/src/nifake/unit_tests/test_library_interpreter.py
+++ b/src/nifake/unit_tests/test_library_interpreter.py
@@ -325,6 +325,20 @@ def test_multiple_arrays_same_size_none_input(self):
             _matchers.ViInt32Matcher(len(input_array_of_floats1)),
         )
 
+    def test_multiple_arrays_different_size(self):
+        self.patched_library.niFake_MultipleArraysDifferentSize.side_effect = self.side_effects_helper.niFake_MultipleArraysDifferentSize
+        values_array = [1.1, 2.2, 3.3]
+        data_array = [10, 20, 30, 40, 50]
+        interpreter = self.get_initialized_library_interpreter()
+        interpreter.multiple_arrays_different_size(values_array, data_array)
+        self.patched_library.niFake_MultipleArraysDifferentSize.assert_called_once_with(
+            _matchers.ViSessionMatcher(SESSION_NUM_FOR_TEST),
+            _matchers.ViReal64BufferMatcher(values_array),
+            _matchers.ViInt32Matcher(len(values_array)),
+            _matchers.ViInt32BufferMatcher(data_array),
+            _matchers.ViInt32Matcher(len(data_array)),
+        )
+
     def test_parameters_are_multiple_types(self):
         self.patched_library.niFake_ParametersAreMultipleTypes.side_effect = self.side_effects_helper.niFake_ParametersAreMultipleTypes
         boolean_val = True