CurryApplied
CurryApplied[f, n] represents an operator form of the function f of n arguments so that CurryApplied[f, n][x1]...[xn] is equivalent to f[x1, ..., xn].
CurryApplied[n] represents an operator form of CurryApplied that can be applied to a function to represent an operator form with n arguments.
CurryApplied[f, {i1, ..., in}] represents an operator form of the function f of n arguments so that CurryApplied[f, {i1, ..., in}][x1]...[xn] is equivalent to f[xi1, ..., xin].
CurryApplied[f, k -> {i1, ..., in}] represents an operator form that takes k arguments.
Examples
Curry a function of two arguments:
CurryApplied[Plus, 2][3][5]
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