code: function isLLSend (node) {
    return isMemberAccess(node,
            exactMatch(util.escapeRegExp(lowLevelCallTypes.SEND.type)),
            undefined, exactMatch(basicTypes.ADDRESS), exactMatch(lowLevelCallTypes.SEND.ident))
  }
docs: True if low level send (solidity < 0.5)
  @node {ASTNode} some AstNode
  @return {bool}