Returns the result of applying f
to this Result's value if this
result is Ok.
Returns the result's value.
Returns the result's value.
Note: The result must be Ok.
Returns true if the result is Empty, false otherwise.
Returns true if the result is Failed, false otherwise.
Returns true if the result is Ok, false otherwise.
Returns true if the result is Pending, false otherwise.
Returns a Result containing the result of applying f
to this
Result's value if this Result is Ok.