# Applies a function to each element, resulting in [2, 4, 6].
map	{{ [1, 2, 3] | map(i => i * 2) }}

io.pebbletemplates.pebble.error.ParserException: Unexpected token "OPERATOR" of value ">" (map {{ [1, 2, 3] | map(i => i * 2) }}:1)

# Filters the list based on a predicate, resulting in [2, 3].
filter	{{ [1, 2, 3] | filter(i => i > 1) }}

io.pebbletemplates.pebble.error.ParserException: Unexpected token "OPERATOR" of value ">" (filter {{ [1, 2, 3] | filter(i => i > 1) }}:1)

# Reduces the list to a single value, resulting in 6.
reduce	{{ [1, 2, 3] | reduce((a, b) => a + b, 0) }}

io.pebbletemplates.pebble.error.ParserException: Unexpected token of value "," and type PUNCTUATION, expected token of type PUNCTUATION (reduce {{ [1, 2, 3] | reduce((a, b) => a + b, 0) }}:1)