rule_info {
  rule_name: "my_rule"
  doc_string: "This is my rule. It does stuff."
  attribute {
    name: "name"
    doc_string: "A unique name for this target."
    type: NAME
    mandatory: true
  }
  attribute {
    name: "a"
    doc_string: "Some bool"
    type: BOOLEAN
    mandatory: true
  }
  attribute {
    name: "b"
    doc_string: "Some int"
    type: INT
    mandatory: true
  }
  attribute {
    name: "c"
    doc_string: "Some int_list"
    type: INT_LIST
    mandatory: true
  }
  attribute {
    name: "d"
    doc_string: "Some label"
    type: LABEL
    mandatory: true
  }
  attribute {
    name: "e"
    doc_string: "Some label_keyed_string_dict"
    type: LABEL_STRING_DICT
    mandatory: true
  }
  attribute {
    name: "f"
    doc_string: "Some label_list"
    type: LABEL_LIST
    mandatory: true
  }
  attribute {
    name: "g"
    doc_string: "Some output"
    type: OUTPUT
  }
  attribute {
    name: "h"
    doc_string: "Some output_list"
    type: OUTPUT_LIST
  }
  attribute {
    name: "i"
    doc_string: "Some string"
    type: STRING
    mandatory: true
  }
  attribute {
    name: "j"
    doc_string: "Some string_dict"
    type: STRING_DICT
    mandatory: true
  }
  attribute {
    name: "k"
    doc_string: "Some string_list"
    type: STRING_LIST
    mandatory: true
  }
  attribute {
    name: "l"
    doc_string: "Some string_list_dict"
    type: STRING_LIST_DICT
    default_value: "{}"
  }
}
func_info {
  function_name: "my_rule_impl"
  parameter {
    name: "ctx"
    mandatory: true
  }
}