looking for information about arduino functions

Projects Programming
1

functions called
setio set input output
getio get input output
getanna get annalog

couldn't find information about these but i was told that they exist

2

but i was told that they exist

Someone lied to you.

3

They may well exist but not as part of the standard Arduino system.
For example

void setio()
{
  pinMode(outPin, OUTPUT);
  pinMode(inPin, INPUT_PULLUP);
}

but that is no use to you.

Where did you see mention of them ?

4

Arduino uses digitalWrite(), digitalRead() and analogRead().

5

See the "Reference" section of this website.