fcurve
build an Fcurve
See also
Parses the provided string to create an FCurve. This function attempts to either interpret the input as a constant value or evaluate it as a series of functional curve commands.
Return
An FCurve constructed based on the input string.
Parameters
d
A string representing either a constant value or functional curve commands. If the string can be converted to a double, it is treated as a constant value for the FCurve. Otherwise, it is parsed as functional curve commands.