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isWritableSink
Function isWritableSink
isWritableSink
<
T
>
(
sink
:
UnderlyingSink
<
T
>
)
:
sink
is
WritableSink
<
T
>
A guard to test that an
UnderlyingSink
object that has a
write
method.
Type Parameters
T
Parameters
sink
:
UnderlyingSink
<
T
>
Returns
sink
is
WritableSink
<
T
>
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A guard to test that an
UnderlyingSinkobject that has awritemethod.