



import unittest

import numpy as np





def 		a__			(		_UpperCamelCase			: np.ndarray ,_UpperCamelCase			: np.ndarray ,_UpperCamelCase			: np.ndarray ,_UpperCamelCase			: np.ndarray | None = None ,):
   __lowerCamelCase													=    np.shape(_UpperCamelCase							)
   __lowerCamelCase													=    np.shape(_UpperCamelCase							)
   __lowerCamelCase													=    np.shape(_UpperCamelCase							)

   if shape_a[0] != shape_b[0]:
      __lowerCamelCase													=    (
          '''Expected the same number of rows for A and B. '''
          F"""Instead found A of size {shape_a} and B of size {shape_b}"""
      )
      raise ValueError(_UpperCamelCase							)

   if shape_b[1] != shape_c[1]:
      __lowerCamelCase													=    (
          '''Expected the same number of columns for B and C. '''
          F"""Instead found B of size {shape_b} and C of size {shape_c}"""
      )
      raise ValueError(_UpperCamelCase							)

   __lowerCamelCase													=    pseudo_inv
   if a_inv is None:
      try:
         __lowerCamelCase													=    np.linalg.inv(_UpperCamelCase							)
      except np.linalg.LinAlgError:
         raise ValueError(
             '''Input matrix A is not invertible. Cannot compute Schur complement.'''							)

   return mat_c - mat_b.T @ a_inv @ mat_b



class  __lowerCAmelCase     (	unittest.TestCase   ):




 def        lowerCamelCase      (						self				):



    '''simple docstring'''
    __lowerCamelCase													=    np.array([[1, 2, 1], [2, 1, 2], [3, 2, 4]]				)
    __lowerCamelCase													=    np.array([[0, 3], [3, 0], [2, 3]]				)
    __lowerCamelCase													=    np.array([[2, 1], [6, 3]]				)

    __lowerCamelCase													=    schur_complement(__UpperCAmelCase	,				__UpperCAmelCase	,				__UpperCAmelCase				)

    __lowerCamelCase													=    np.block([[a, b], [b.T, c]]				)

    __lowerCamelCase													=    np.linalg.det(__UpperCAmelCase				)
    __lowerCamelCase													=    np.linalg.det(__UpperCAmelCase				)
    __lowerCamelCase													=    np.linalg.det(__UpperCAmelCase				)

    self.assertAlmostEqual(__UpperCAmelCase	,				det_a * det_s				)




 def        lowerCamelCase      (						self				):



    '''simple docstring'''
    __lowerCamelCase													=    np.array([[1, 2, 1], [2, 1, 2], [3, 2, 4]]				)
    __lowerCamelCase													=    np.array([[0, 3], [3, 0], [2, 3]]				)
    __lowerCamelCase													=    np.array([[2, 1], [6, 3]]				)

    with self.assertRaises(__UpperCAmelCase				):
       schur_complement(__UpperCAmelCase	,				__UpperCAmelCase	,				__UpperCAmelCase				)




 def        lowerCamelCase      (						self				):



    '''simple docstring'''
    __lowerCamelCase													=    np.array([[1, 2, 1], [2, 1, 2], [3, 2, 4]]				)
    __lowerCamelCase													=    np.array([[0, 3], [3, 0], [2, 3]]				)
    __lowerCamelCase													=    np.array([[2, 1, 3], [6, 3, 5]]				)

    with self.assertRaises(__UpperCAmelCase				):
       schur_complement(__UpperCAmelCase	,				__UpperCAmelCase	,				__UpperCAmelCase				)


if __name__ == "__main__":
  import doctest

  doctest.testmod()
  unittest.main()











from ...configuration_utils import PretrainedConfig
from ...utils import logging


a_			=					logging.get_logger(__name__)

a_			=					{
    """uclanlp/visualbert-vqa""": """https://huggingface.co/uclanlp/visualbert-vqa/resolve/main/config.json""",
    """uclanlp/visualbert-vqa-pre""": """https://huggingface.co/uclanlp/visualbert-vqa-pre/resolve/main/config.json""",
    """uclanlp/visualbert-vqa-coco-pre""": (
        """https://huggingface.co/uclanlp/visualbert-vqa-coco-pre/resolve/main/config.json"""
    ),
    """uclanlp/visualbert-vcr""": """https://huggingface.co/uclanlp/visualbert-vcr/resolve/main/config.json""",
    """uclanlp/visualbert-vcr-pre""": """https://huggingface.co/uclanlp/visualbert-vcr-pre/resolve/main/config.json""",
    """uclanlp/visualbert-vcr-coco-pre""": (
        """https://huggingface.co/uclanlp/visualbert-vcr-coco-pre/resolve/main/config.json"""
    ),
    """uclanlp/visualbert-nlvr2""": """https://huggingface.co/uclanlp/visualbert-nlvr2/resolve/main/config.json""",
    """uclanlp/visualbert-nlvr2-pre""": """https://huggingface.co/uclanlp/visualbert-nlvr2-pre/resolve/main/config.json""",
    """uclanlp/visualbert-nlvr2-coco-pre""": (
        """https://huggingface.co/uclanlp/visualbert-nlvr2-coco-pre/resolve/main/config.json"""
    )
    # See all VisualBERT models at https://huggingface.co/models?filter=visual_bert
}



class  __lowerCAmelCase     (	lowerCAmelCase__   ):
 lowerCAmelCase__       					=  """visual_bert"""




 def __init__(						self	,				__UpperCAmelCase=30522	,				__UpperCAmelCase=768	,				__UpperCAmelCase=512	,				__UpperCAmelCase=12	,				__UpperCAmelCase=12	,				__UpperCAmelCase=3072	,				__UpperCAmelCase="gelu"	,				__UpperCAmelCase=0.1	,				__UpperCAmelCase=0.1	,				__UpperCAmelCase=512	,				__UpperCAmelCase=2	,				__UpperCAmelCase=0.02	,				__UpperCAmelCase=1E-1_2	,				__UpperCAmelCase=False	,				__UpperCAmelCase=True	,				__UpperCAmelCase=1	,				__UpperCAmelCase=0	,				__UpperCAmelCase=2	,				**__UpperCAmelCase	,				):



    '''simple docstring'''
    super().__init__(pad_token_id=__UpperCAmelCase	,				bos_token_id=__UpperCAmelCase	,				eos_token_id=__UpperCAmelCase	,				**__UpperCAmelCase				)

    __lowerCamelCase													=    vocab_size
    __lowerCamelCase													=    max_position_embeddings
    __lowerCamelCase													=    hidden_size
    __lowerCamelCase													=    visual_embedding_dim
    __lowerCamelCase													=    num_hidden_layers
    __lowerCamelCase													=    num_attention_heads
    __lowerCamelCase													=    intermediate_size
    __lowerCamelCase													=    hidden_act
    __lowerCamelCase													=    hidden_dropout_prob
    __lowerCamelCase													=    attention_probs_dropout_prob
    __lowerCamelCase													=    initializer_range
    __lowerCamelCase													=    type_vocab_size
    __lowerCamelCase													=    layer_norm_eps
    __lowerCamelCase													=    bypass_transformer
    __lowerCamelCase													=    special_visual_initialize






