multi line comment in shell code example

Example 1: linux multiline commet

# if [[ $VAR -gt 10 ]]; then
#  echo "Variable is greater than 10."
# fi

Example 2: multiline comment in bash

: << 'comment1'
	what ver you want to comment
comment1

Example 3: bash multiline comment

: '
This is a
very neat comment
in bash
'