
{{alias}}( str )
    Converts a duration string to milliseconds.

    A duration string is a string containing a sequence of time units. A time
    unit is a nonnegative integer followed by a unit identifier. The following
    unit identifiers are supported:

    - d: days.
    - h: hours.
    - m: minutes.
    - s: seconds.
    - ms: milliseconds.

    For example, the string `1m3s10ms` is a duration string containing three
    time units: `1m` (1 minute), `3s` (3 seconds), and `10ms` (10 milliseconds).
    The string `60m` is a duration string containing a single time unit: `60m`
    (60 minutes).

    Duration strings are case insensitive. For example, the string `1M3S10MS` is
    equivalent to `1m3s10ms`.

    Parameters
    ----------
    str: string
        Duration string.

    Returns
    -------
    out: integer
        Number of milliseconds.

    Examples
    --------
    > var ms = {{alias}}( '1d' )
    86400000
    > ms = {{alias}}( '1d2h3m4s5ms' )
    93784005

    See Also
    --------
