The purpose of the package dependencies is to provide additional functionality, which are usually downloaded from pub.
What are Package dependencies?
This is referred to another package that your package needs in order to work thereby increasing its functionality. This therefore denotes a direct relationship between the both of them in this type of scenario.
It is also usually downloaded from pub and are specified in the pubspec thereby making its ability to provide additional functions due to the presence of the other and is therefore the most appropriate choice in this type of scenario.
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