typescript function caller

[TJakubek]

I want to make a generic function that will accept a contract, a function I want to call on this contract and its parameters. In the body I want to have some generic logic like current gas price fetching, estimateGas and error handling so I want this helper function to not have to keep rewriting this logic everywhere.

I have come up with

export const callFunction = <T>(
  contract: T,
  func: keyof T,
  parameters: Parameters<T[keyof T]> 
) => {};

which seems like it should work but I keep getting the typescript error

Type 'T[keyof T]' does not satisfy the constraint '(...args: any) => any'.
  Type 'T[string] | T[number] | T[symbol]' is not assignable to type '(...args: any) => any'.
    Type 'T[string]' is not assignable to type '(...args: any) => any'.ts(2344)

Im pretty sure this should be working but TS is still yelling at me.
Ive also tried using something like

type FunctionKeys<T> = {
  [K in keyof T]: T[K] extends (...args: any) => any ? K : never;
}[keyof T];

to no success.
Anyone have any thoughts?