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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def to_datetime(arg, errors='raise', dayfirst=False, yearfirst=False, utc=None, box=True, format=None, exact=True, unit=None, infer_datetime_format=False, origin='unix', cache=False):
 """ Convert argument to datetime. Parameters arg : integer, float, string, datetime, list, tuple, 1-d array, Series .. versionadded:: 0.18.1 or DataFrame/dict-like errors : {'ignore', 'raise', 'coerce'}, default 'raise' - If 'raise', then invalid parsing will raise an exception - If 'coerce', then invalid parsing will be set as NaT - If 'ignore', then invalid parsing will return the input dayfirst : boolean, default False Specify a date parse order if `arg` is str or its list-likes. If True, parses dates with the day first, eg 10/11/12 is parsed as 2012-11-10. Warning: dayfirst=True is not strict, but will prefer to parse with day first (this is a known bug, based on dateutil behavior). yearfirst : boolean, default False Specify a date parse order if `arg` is str or its list-likes. - If True parses dates with the year first, eg 10/11/12 is parsed as 2010-11-12. - If both dayfirst and yearfirst are True, yearfirst is preceded (same as dateutil). Warning: yearfirst=True is not strict, but will prefer to parse with year first (this is a known bug, based on dateutil behavior). .. versionadded:: 0.16.1 utc : boolean, default None Return UTC DatetimeIndex if True (converting any tz-aware datetime.datetime objects as well). box : boolean, default True - If True returns a DatetimeIndex or Index-like object - If False returns ndarray of values. .. deprecated:: 0.25.0 Use :meth:`.to_numpy` or :meth:`Timestamp.to_datetime64` instead to get an ndarray of values or numpy.datetime64, respectively. format : string, default None strftime to parse time, eg "%d/%m/%Y", note that "%f" will parse all the way up to nanoseconds. See strftime documentation for more information on choices: https://docs.python.org/3/library/datetime.html#strftime-and-strptime-behavior exact : boolean, True by default - If True, require an exact format match. - If False, allow the format to match anywhere in the target string. unit : string, default 'ns' unit of the arg (D,s,ms,us,ns) denote the unit, which is an integer or float number. This will be based off the origin. Example, with unit='ms' and origin='unix' (the default), this would calculate the number of milliseconds to the unix epoch start. infer_datetime_format : boolean, default False If True and no `format` is given, attempt to infer the format of the datetime strings, and if it can be inferred, switch to a faster method of parsing them. In some cases this can increase the parsing speed by ~5-10x. origin : scalar, default is 'unix' Define the reference date. The numeric values would be parsed as number of units (defined by `unit`) since this reference date. - If 'unix' (or POSIX) time; origin is set to 1970-01-01. - If 'julian', unit must be 'D', and origin is set to beginning of Julian Calendar. Julian day number 0 is assigned to the day starting at noon on January 1, 4713 BC. - If Timestamp convertible, origin is set to Timestamp identified by origin. .. versionadded:: 0.20.0 cache : boolean, default False If True, use a cache of unique, converted dates to apply the datetime conversion. May produce significant speed-up when parsing duplicate date strings, especially ones with timezone offsets. .. versionadded:: 0.23.0 Returns ------- ret : datetime if parsing succeeded. Return type depends on input: - list-like: DatetimeIndex - Series: Series of datetime64 dtype - scalar: Timestamp In case when it is not possible to return designated types (e.g. when any element of input is before Timestamp.min or after Timestamp.max) return will have datetime.datetime type (or corresponding array/Series). See Also -------- DataFrame.astype : Cast argument to a specified dtype. to_timedelta : Convert argument to timedelta. Examples -------- Assembling a datetime from multiple columns of a DataFrame. The keys can be common abbreviations like ['year', 'month', 'day', 'minute', 'second', 'ms', 'us', 'ns']) or plurals of the same 'month': [2, 3], 'day': [4, 5]}) 0 2015-02-04 1 2016-03-05 dtype: datetime64[ns] If a date does not meet the `timestamp limitations <http://pandas.pydata.org/pandas-docs/stable/timeseries.html #timeseries-timestamp-limits>`_, passing errors='ignore' will return the original input instead of raising any exception. Passing errors='coerce' will force an out-of-bounds date to NaT, in addition to forcing non-dates (or non-parseable dates) to NaT. datetime.datetime(1300, 1, 1, 0, 0) NaT Passing infer_datetime_format=True can often-times speedup a parsing if its not an ISO8601 format exactly, but in a regular format. 0 3/11/2000 1 3/12/2000 2 3/13/2000 3 3/11/2000 4 3/12/2000 dtype: object 100 loops, best of 3: 10.4 ms per loop 1 loop, best of 3: 471 ms per loop Using a unix epoch time Timestamp('2017-03-22 15:16:45') Timestamp('2017-03-22 15:16:45.433502912') .. warning:: For float arg, precision rounding might happen. To prevent unexpected behavior use a fixed-width exact type. Using a non-unix epoch origin origin=pd.Timestamp('1960-01-01')) 0 1960-01-02 1 1960-01-03 2 1960-01-04 """

    if arg is None:
        return None

    if origin != 'unix':
        arg = _adjust_to_origin(arg, origin, unit)

    tz = 'utc' if utc else None
    convert_listlike = partial(_convert_listlike_datetimes, tz=tz, unit=unit,
                               dayfirst=dayfirst, yearfirst=yearfirst,
                               errors=errors, exact=exact,
                               infer_datetime_format=infer_datetime_format)

    if isinstance(arg, Timestamp):
        result = arg
        if tz is not None:
            if arg.tz is not None:
                result = result.tz_convert(tz)
            else:
                result = result.tz_localize(tz)
    elif isinstance(arg, ABCSeries):
        cache_array = _maybe_cache(arg, format, cache, convert_listlike)
        if not cache_array.empty:
            result = arg.map(cache_array)
        else:
            values = convert_listlike(arg._values, True, format)
            result = arg._constructor(values, index=arg.index, name=arg.name)
    elif isinstance(arg, (ABCDataFrame, abc.MutableMapping)):
        result = _assemble_from_unit_mappings(arg, errors, box, tz)
    elif isinstance(arg, ABCIndexClass):
        cache_array = _maybe_cache(arg, format, cache, convert_listlike)
        if not cache_array.empty:
            result = _convert_and_box_cache(arg, cache_array, box, errors,
                                            name=arg.name)
        else:
            convert_listlike = partial(convert_listlike, name=arg.name)
            result = convert_listlike(arg, box, format)
    elif is_list_like(arg):
        cache_array = _maybe_cache(arg, format, cache, convert_listlike)
        if not cache_array.empty:
            result = _convert_and_box_cache(arg, cache_array, box, errors)
        else:
            result = convert_listlike(arg, box, format)
    else:
        result = convert_listlike(np.array([arg]), box, format)[0]

    return result