def __init__(self, layer_cache, cwd, lambda_client=None):
self._layer_cache = layer_cache<EOL>self.cwd = cwd<EOL>self.lambda_client = lambda_client or boto3.client('<STR_LIT>')<EOL>
Parameters
----------
layer_cache str
    path where to cache layers
cwd str
    Current working directory
lambda_client boto3.client('lambda')
    Boto3 Client for AWS Lambda