




def 					lowerCamelCase__       (						A__       :					List[str]	):





       '''simple docstring'''



       if not head:
              return True
       # split the list to two parts
       __lowerCamelCase,   __lowerCamelCase   =						head.next, head
       while fast and fast.next:
              __lowerCamelCase   =						fast.next.next
              __lowerCamelCase   =						slow.next
       __lowerCamelCase   =						slow.next
       __lowerCamelCase   =						None  # Don't forget here! But forget still works!
       # reverse the second part
       __lowerCamelCase   =						None
       while second:
              __lowerCamelCase   =						second.next
              __lowerCamelCase   =						node
              __lowerCamelCase   =						second
              __lowerCamelCase   =						nxt
       # compare two parts
       # second part has the same or one less node
       while node:
              if node.val != head.val:
                     return False
              __lowerCamelCase   =						node.next
              __lowerCamelCase   =						head.next
       return True




def 					lowerCamelCase__       (						A__       :					Optional[int]	):





       '''simple docstring'''



       if not head or not head.next:
              return True

       # 1. Get the midpoint (slow)
       __lowerCamelCase   =						__lowerCamelCase   =						__lowerCamelCase   =						head
       while fast and fast.next:
              __lowerCamelCase,   __lowerCamelCase   =						fast.next.next, slow.next

       # 2. Push the second half into the stack
       __lowerCamelCase   =						[slow.val]
       while slow.next:
              __lowerCamelCase   =						slow.next
              stack.append(slow.val	)

       # 3. Comparison
       while stack:
              if stack.pop() != cur.val:
                     return False
              __lowerCamelCase   =						cur.next

       return True




def 					lowerCamelCase__       (						A__       :					List[str]	):





       '''simple docstring'''



       if not head or not head.next:
              return True
       __lowerCamelCase   =						{}
       __lowerCamelCase   =						0
       while head:
              if head.val in d:
                     d[head.val].append(__snake_case	)
              else:
                     __lowerCamelCase   =						[pos]
              __lowerCamelCase   =						head.next
              pos += 1
       __lowerCamelCase   =						pos - 1
       __lowerCamelCase   =						0
       for v in d.values():
              if len(__snake_case	) % 2 != 0:
                     middle += 1
              else:
                     __lowerCamelCase   =						0
                     for i in range(0  ,			len(__snake_case	)	):
                            if v[i] + v[len(__snake_case	) - 1 - step] != checksum:
                                   return False
                            step += 1
              if middle > 1:
                     return False
       return True








from collections import OrderedDict
from typing import Mapping

from packaging import version

from ...configuration_utils import PretrainedConfig
from ...onnx import OnnxConfig
from ...utils import logging


_a 						=      logging.get_logger(__name__)

_a 						=      {
    "hustvl/yolos-small": "https://huggingface.co/hustvl/yolos-small/resolve/main/config.json",
    # See all YOLOS models at https://huggingface.co/models?filter=yolos
}






class 					__A    (    lowerCAmelCase ):

			'''simple docstring'''







			lowerCAmelCase_							     =						"""yolos"""





			def __init__(    self       ,  __lowerCAmelCase=7_6_8       ,  __lowerCAmelCase=1_2       ,  __lowerCAmelCase=1_2       ,  __lowerCAmelCase=3_0_7_2       ,  __lowerCAmelCase="gelu"       ,  __lowerCAmelCase=0.0       ,  __lowerCAmelCase=0.0       ,  __lowerCAmelCase=0.02       ,  __lowerCAmelCase=1E-12       ,  __lowerCAmelCase=[5_1_2, 8_6_4]       ,  __lowerCAmelCase=1_6       ,  __lowerCAmelCase=3       ,  __lowerCAmelCase=True       ,  __lowerCAmelCase=1_0_0       ,  __lowerCAmelCase=True       ,  __lowerCAmelCase=False       ,  __lowerCAmelCase=1       ,  __lowerCAmelCase=5       ,  __lowerCAmelCase=2       ,  __lowerCAmelCase=5       ,  __lowerCAmelCase=2       ,  __lowerCAmelCase=0.1       ,  **__lowerCAmelCase       ,  ):



				'''simple docstring'''







				super().__init__(**__lowerCAmelCase							)

				lowerCamelCase__								=		hidden_size
				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__								=		layer_norm_eps
				lowerCamelCase__								=		image_size
				lowerCamelCase__								=		patch_size
				lowerCamelCase__								=		num_channels
				lowerCamelCase__								=		qkv_bias
				lowerCamelCase__								=		num_detection_tokens
				lowerCamelCase__								=		use_mid_position_embeddings
				lowerCamelCase__								=		auxiliary_loss
				# Hungarian matcher
				lowerCamelCase__								=		class_cost
				lowerCamelCase__								=		bbox_cost
				lowerCamelCase__								=		giou_cost
				# Loss coefficients
				lowerCamelCase__								=		bbox_loss_coefficient
				lowerCamelCase__								=		giou_loss_coefficient
				lowerCamelCase__								=		eos_coefficient






class 					__A    (    lowerCAmelCase ):

			'''simple docstring'''







			lowerCAmelCase_							     =						version.parse("""1.11""" )





			@property
			def 		__lowerCamelCase				(    self							):



				'''simple docstring'''







				return OrderedDict(
				    [
				        ('''pixel_values''', {0: '''batch''', 1: '''num_channels''', 2: '''height''', 3: '''width'''}),
				    ]							)





			@property
			def 		__lowerCamelCase				(    self							):



				'''simple docstring'''







				return 1E-4





			@property
			def 		__lowerCamelCase				(    self							):



				'''simple docstring'''







				return 1_2



