; locals.scm

(function_definition) @local.scope

(argument  name: (identifier) @local.definition)
(parameter name: (identifier) @local.definition)

(binary_operator
    lhs: (identifier) @local.definition
    operator: "<-")
(binary_operator
    lhs: (identifier) @local.definition
    operator: "=")
(binary_operator
    operator: "->"
    rhs: (identifier) @local.definition)

(identifier) @local.reference