I want to get random numbers from Gamma distribution, when I do

rgamma(1.95, 2)
[1] 2.313977

but,
rgamma(2, 2)
[1] 2.7985347 0.9415515

Why do I get two random numbers?  It's the same density function, I don't
see why the output should be a pair of numbers, is this explained in the
documentation?

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