


import numpy as np
import qiskit



def 	_lowerCAmelCase  (							lowerCAmelCase_							:str = 8						,  lowerCAmelCase_							:int = None							)->Union[str, Any]:
   '''simple docstring'''






   snake_case_    			=    np.random.default_rng(seed=lowercase__							)

   # Roughly 25% of the qubits will contribute to the key.
   # So we take more than we need.
   snake_case_    			=    6 * key_len
   # Measurement basis for Alice's qubits.
   snake_case_    			=    rng.integers(2						,  size=lowercase__							)
   # The set of states Alice will prepare.
   snake_case_    			=    rng.integers(2						,  size=lowercase__							)
   # Measurement basis for Bob's qubits.
   snake_case_    			=    rng.integers(2						,  size=lowercase__							)

   # Quantum Circuit to simulate BB84
   snake_case_    			=    qiskit.QuantumCircuit(lowercase__						,  name="BB84"							)

   # Alice prepares her qubits according to rules above.
   for index, _ in enumerate(lowercase__							):
      if alice_state[index] == 1:
         bbaa_circ.x(lowercase__							)
      if alice_basis[index] == 1:
         bbaa_circ.h(lowercase__							)
   bbaa_circ.barrier()

   # Bob measures the received qubits according to rules above.
   for index, _ in enumerate(lowercase__							):
      if bob_basis[index] == 1:
         bbaa_circ.h(lowercase__							)

   bbaa_circ.barrier()
   bbaa_circ.measure_all()

   # Simulate the quantum circuit.
   snake_case_    			=    qiskit.Aer.get_backend("aer_simulator"							)
   # We only need to run one shot because the key is unique.
   # Multiple shots will produce the same key.
   snake_case_    			=    qiskit.execute(lowercase__						,  lowercase__						,  shots=1						,  seed_simulator=lowercase__							)
   # Returns the result of measurement.
   snake_case_    			=    job.result().get_counts(lowercase__							).most_frequent()

   # Extracting the generated key from the simulation results.
   # Only keep measurement results where Alice and Bob chose the same basis.
   snake_case_    			=    ''''''.join(
       [
           result_bit
           for alice_basis_bit, bob_basis_bit, result_bit in zip(
               lowercase__						,  lowercase__						,  lowercase__							)
           if alice_basis_bit == bob_basis_bit
       ]							)

   # Get final key. Pad with 0 if too short, otherwise truncate.
   snake_case_    			=    gen_key[:key_len] if len(lowercase__							) >= key_len else gen_key.ljust(lowercase__						,  "0"							)
   return key


if __name__ == "__main__":
   print(F'''The generated key is : {bbaa(8, seed=0)}''')
   from doctest import testmod

   testmod()








import inspect
import warnings
from typing import Any, Dict, Optional, Union

from packaging import version


def        _UpperCamelCase							(      *lowercase__    ,       lowercase__ = None    ,       lowercase__=True    ,       lowercase__=2      ):
						from .. import __version__

						__SCREAMING_SNAKE_CASE						:     Optional[Any]					=		take_from
						__SCREAMING_SNAKE_CASE						:     List[str]					=		()
						if not isinstance(args[0]    ,       lowercase__      ):
												__SCREAMING_SNAKE_CASE						:     List[Any]					=		(args,)

						for attribute, version_name, message in args:
												if version.parse(version.parse(lowercase__      ).base_version      ) >= version.parse(lowercase__      ):
																		raise ValueError(
																		    F'''The deprecation tuple {(attribute, version_name, message)} should be removed since diffusers\''''
																		    F''' version {__version__} is >= {version_name}'''      )

												__SCREAMING_SNAKE_CASE						:     Optional[Any]					=		None
												if isinstance(lowercase__    ,       lowercase__      ) and attribute in deprecated_kwargs:
																		values += (deprecated_kwargs.pop(lowercase__      ),)
																		__SCREAMING_SNAKE_CASE						:     List[Any]					=		F'''The `{attribute}` argument is deprecated and will be removed in version {version_name}.'''
												elif hasattr(lowercase__    ,       lowercase__      ):
																		values += (getattr(lowercase__    ,       lowercase__      ),)
																		__SCREAMING_SNAKE_CASE						:     List[str]					=		F'''The `{attribute}` attribute is deprecated and will be removed in version {version_name}.'''
												elif deprecated_kwargs is None:
																		__SCREAMING_SNAKE_CASE						:     str					=		F'''`{attribute}` is deprecated and will be removed in version {version_name}.'''

												if warning is not None:
																		__SCREAMING_SNAKE_CASE						:     Any					=		warning + ''' ''' if standard_warn else ''''''
																		warnings.warn(warning + message    ,       lowercase__    ,       stacklevel=lowercase__      )

						if isinstance(lowercase__    ,       lowercase__      ) and len(lowercase__      ) > 0:
												__SCREAMING_SNAKE_CASE						:     Union[str, Any]					=		inspect.getouterframes(inspect.currentframe()      )[1]
												__SCREAMING_SNAKE_CASE						:     Dict					=		call_frame.filename
												__SCREAMING_SNAKE_CASE						:     Optional[Any]					=		call_frame.lineno
												__SCREAMING_SNAKE_CASE						:     int					=		call_frame.function
												__SCREAMING_SNAKE_CASE			,			__SCREAMING_SNAKE_CASE						:     int					=		next(iter(deprecated_kwargs.items()      )      )
												raise TypeError(F'''{function} in {filename} line {line_number-1} got an unexpected keyword argument `{key}`'''      )

						if len(lowercase__      ) == 0:
												return
						elif len(lowercase__      ) == 1:
												return values[0]
						return values
