In terraform, the main elementes of configuration files are (fill out missing occulsion):

<BLOCK TYPE> "<BLOCK LABEL>" "<BLOCK LABEL>" {
# Block body
<IDENTIFIER> = <EXPRESSION> # this line is a block [...]
}

In terraform, the main elementes of configuration files are (fill out missing occulsion):

<BLOCK TYPE> "<BLOCK LABEL>" "<BLOCK LABEL>" {
# Block body
<IDENTIFIER> = <EXPRESSION> # this line is a block [...]
}

Argument

^^ e.g. following resource block for "aws_instance", has two arguments declaring/describing the resource ("ami" and "instance_type"):

resource "aws_instance" "example" {
  ami           = "ami-b374d5a5"
  instance_type = "t2.micro"
}