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alias2pkg( alias )
Returns the package name associated with a provided alias.
Parameters
----------
alias: any
Alias (an object path string or reference).
Returns
-------
out: string|undefined
Package name.
Examples
--------
> var v = alias2pkg( 'base.sin' )
'@stdlib/math/base/special/sin'
alias2pkg( instance )
Returns the package name associated with a provided class instance.
Only direct instances of documented built-in constructors are supported.
Parameters
----------
instance: any
Class instance.
Returns
-------
out: string|undefined
Package name.
Examples
--------
> var v = alias2pkg( new Float64Array( 10 ) )
'@stdlib/array/float64'
See Also
--------
alias2related, aliases, pkg2alias
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