helix-plus/runtime/queries/gleam/textobjects.scm

(function
  parameters: (function_parameters (function_parameter)? @parameter.inside)
  body: (function_body) @function.inside) @function.around

(anonymous_function
  body: (function_body) @function.inside) @function.around

((function
   name: (identifier) @_name
   body: (function_body) @test.inside) @test.around
 (#match? @_name "_test$"))
add textobject queries for gleam 2 years ago			`(function`
			`parameters: (function_parameters (function_parameter)? @parameter.inside)`
			`body: (function_body) @function.inside) @function.around`

			`(anonymous_function`
			`body: (function_body) @function.inside) @function.around`
add test textobjects queries for erlang,gleam,go,python,rust 2 years ago
			`((function`
			`name: (identifier) @_name`
			`body: (function_body) @test.inside) @test.around`
			`(#match? @_name "_test$"))`