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"""The `startswith` function extension."""
from jsonpath.function_extensions import ExpressionType
from jsonpath.function_extensions import FilterFunction
class StartsWith(FilterFunction):
"""The `startswith` function extension."""
arg_types = [ExpressionType.VALUE, ExpressionType.VALUE]
return_type = ExpressionType.LOGICAL
def __call__(self, value: object, prefix: object) -> bool:
"""Return `True` if `value` starts with `prefix`."""
if not isinstance(value, str) or not isinstance(prefix, str):
return False
try:
return value.startswith(prefix)
except AttributeError:
return False
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