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import sys
from typing import Optional
def _in_argv(argument: str) -> bool:
"""Returns true if the argument is found is sys.argv.
Since long options can be passed as either '--option value' or '--option=value' we need to check for both forms.
"""
for arg in sys.argv:
if arg.split('=')[0] == argument:
return True
return False
def _index_argv(argument: str) -> Optional[int]:
"""Returns the location of the argument in sys.argv, or None.
Since long options can be passed as either '--option value' or '--option=value' we need to check for both forms.
"""
for i, arg in enumerate(sys.argv):
if arg.split('=')[0] == argument:
return i
return None
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