Function single_float_to_decimal 

pub fn single_float_to_decimal<D>(
    input: f64,
    mul: f64,
) -> Option<<D as ArrowPrimitiveType>::Native>
where
    D: DecimalType + ArrowPrimitiveType,
    <D as ArrowPrimitiveType>::Native: DecimalCast,

Cast a single floating point value to a decimal native with the given multiple. Returns None if the value cannot be represented with the requested precision.