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: "first"
    type: LABEL
    mandatory: true
  }
  attribute {
    name: "second"
    type: STRING_DICT
    mandatory: true
  }
}
rule_info {
  rule_name: "other_rule"
  doc_string: "This is another rule."
  attribute {
    name: "name"
    doc_string: "A unique name for this target."
    type: NAME
    mandatory: true
  }
  attribute {
    name: "fourth"
    type: STRING_DICT
    mandatory: true
  }
  attribute {
    name: "third"
    type: LABEL
    mandatory: true
  }
}
rule_info {
  rule_name: "yet_another_rule"
  doc_string: "This is yet another rule"
  attribute {
    name: "name"
    doc_string: "A unique name for this target."
    type: NAME
    mandatory: true
  }
  attribute {
    name: "fifth"
    type: LABEL
    mandatory: true
  }
}
func_info {
  function_name: "my_rule_impl"
  parameter {
    name: "ctx"
    mandatory: true
  }
}