





"""simple docstring"""




from typing import TYPE_CHECKING

from ....utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available


UpperCamelCase_									={
    """configuration_trajectory_transformer""": [
        """TRAJECTORY_TRANSFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP""",
        """TrajectoryTransformerConfig""",
    ],
}

try:
						if not is_torch_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						UpperCamelCase_									=[
						    """TRAJECTORY_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST""",
						    """TrajectoryTransformerModel""",
						    """TrajectoryTransformerPreTrainedModel""",
						    """load_tf_weights_in_trajectory_transformer""",
						]


if TYPE_CHECKING:
						from .configuration_trajectory_transformer import (
						    TRAJECTORY_TRANSFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
						    TrajectoryTransformerConfig,
						)

						try:
												if not is_torch_available():
																		raise OptionalDependencyNotAvailable()
						except OptionalDependencyNotAvailable:
												pass
						else:
												from .modeling_trajectory_transformer import (
												    TRAJECTORY_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
												    TrajectoryTransformerModel,
												    TrajectoryTransformerPreTrainedModel,
												    load_tf_weights_in_trajectory_transformer,
												)


else:
						import sys

						UpperCamelCase_									=_LazyModule(__name__, globals()["""__file__"""], _import_structure, module_spec=__spec__)










"""simple docstring"""




def 	a_    (							_lowercase	,						_lowercase       ):
						if discount_rate < 0:
												raise ValueError('''Discount rate cannot be negative'''       )
						if not cash_flows:
												raise ValueError('''Cash flows list cannot be empty'''       )
						_UpperCamelCase      : Optional[int]         =   sum(
						    cash_flow / ((1 + discount_rate) ** i) for i, cash_flow in enumerate(_lowercase       )       )
						return round(_lowercase	,						ndigits=2       )


if __name__ == "__main__":
						import doctest

						doctest.testmod()



