Getting parameters of Python Toolbox tool to appear in ArcGIS Pro?

Question

I can't get the parameters of my tool to show up in ArcGIS Pro 2.1 Because of my work I can't put my exact code here, but I'll put the skeleton of what I'm doing and hopefully someone can see what I'm doing wrong.

As a disclaimer, I know I can right click and add the parameters directly into my script tool, through pro directly, but I want to do it strictly through python so that I can add my own error messages. However, my python skills are not the strongest and I don't see where I am going wrong.

import arcpy 

class Toolbox(object):
    def __init__(self):
        self.label = "My label"
        self.alias = "The alias"
        self.description = "The description of the tool"
        self.tools = [MyTools]

# Functions

def firstFunction(table):
    """function stuff here"""
def secondFunction(param01):
    """function stuff here"""

# Parameter Info

class MyTools(object):

    def __init__(self):
        self.label = "test"
        self.description = "The description of the tool"
        self.canRunInBackground = True

    def getParameterInfo(self):
        table = arcpy.Parameter(
            displayName = "TABLE",
            name = "table",
            datatype = ["Table", "Feature Layer"],
            parameterType = "Required",
            direction = "input")
        param01 = arcpy.Parameter(
            displayName = "param01",
            name = "param01",
            datatype = "Long", 
            parameterType = "Required",
            direction = "input")
        parameters = [table, param01]
        return parameters 

    def execute(self, parameters):
        table = parameters[0].valueAsText
        param01 = parameters[1].valueAsText

        MyTools()
        firstFunction(table)
        secondFunction(param01)

Answer 1

The solution turned out to be that I was trying to run the script from a py file inside a toolbox that I created, and not as a saved pyt file.